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Sample records for total lunar eclipse

  1. SPECIAL SEMINAR - The NOTTE experiment, or how to become a Total Solar Eclipse chaser

    ScienceCinema (OSTI)

    None

    2011-10-06

    The NOTTE experiment (Neutrino Oscillations with Telescope during Total Eclipse) aims at searching for visible photons emitted through a possible radiative decay of solar neutrinos. The experiment and the expeditions organized by a group of physicists and astrophysicists from INFN and INAF Bologna hunting for Total Solar Eclipses from 1998 to 2006 wil be described. The results of observations performed during total solar eclipse expeditions in 2001 (Zambia) and 2006 (Sahara desert, Libya) are presented and a beautiful photo gallery will be shown. Other peculiar observations that can be made during a solar eclipse are also illustrated. The seminar will be followed by a brief presentation of future camps for solar eclipse chasers and scientists organized in 2008 in Russia, Kazakhstan, China and Mongolia, in 2009 in Shanghai and on the Easter Island in 2010.

  2. Search for possible solar neutrino radiative decays during total solar eclipses

    E-Print Network [OSTI]

    Cecchini, S; Giacomelli, G; Giacomelli, R; Popa, V

    2006-01-01

    Total solar eclipses (TSEs) offer a good opportunity to look for photons produced in possible radiative decays of solar neutrinos. In this paper we briefly review the physics bases of such searches as well as the existing limits on the neutrino proper lifetimes obtained by such experiments. We the report on the observations performed in occasion of the 29 March 2006 TSE, from Waw an Namos, Libya.

  3. Eclipse Java highgrep Eclipse

    E-Print Network [OSTI]

    Chiba, Shigeru

    14 99-0553-0 15 2 6 #12;1 Unix grep Eclipse Java Java ( ) · · Java highgrep highgrep Eclipse #12.2 . . . . . . . . . . . . . . . . . . . . . . . . . . 48 A 52 #12;6 2.1 Eclipse . . . . . . . . . . . . . . . . . . . . 16 2.2 Eclipse Java #12;8 1 Unix grep [4] A A A A Eclipse Java #12;1 9 Java ( ) · · int Eclipse Java Java highgrep

  4. Total eclipse of the heart: The AM CVn Gaia14aae / ASSASN-14cn

    E-Print Network [OSTI]

    Campbell, H C; Fraser, M; Hodgkin, S T; de Miguel, E; Gnsicke, B T; Steeghs, D; Hourihane, A; Breedt, E; Littlefair, S P; Koposov, S E; Wyrzykowski, L; Altavilla, G; Blagorodnova, N; Clementini, G; Damljanovic, G; Delgado, A; Dennefeld, M; Drake, A J; Fernndez-Hernndez, J; Gilmore, G; Gualandi, R; Hamanowicz, A; Handzlik, B; Hardy, L K; Harrison, D L; Ilkiewicz, K; Jonker, P G; Kochanek, C S; Kolaczkowski, Z; Kostrzewa-Rutkowska, Z; Kotak, R; van Leeuwen, G; Leto, G; Ochner, P; Pawlak, M; Palaversa, L; Rixon, G; Rybicki, K; Shappee, B J; Smartt, S J; Torres, M A P; Tomasella, L; Turatto, M; Ulaczyk, K; van Velzen, S; Vince, O; Walton, N A; Wielgrski, P; Wevers, T; Whitelock, P; Yoldas, A; De Angeli, F; Burgess, P; Busso, G; Busuttil, R; Butterley, T; Chambers, K C; Copperwheat, C; Danilet, A B; Dhillon, V S; Evans, D W; Eyer, L; Froebrich, D; Gomboc, A; Holland, G; Holoien, T W -S; Jarvis, J F; Kaiser, N; Kann, D A; Koester, D; Kolb, U; Komossa, S; Magnier, E A; Mahabal, A; Polshaw, J; Prieto, J L; Prusti, T; Riello, M; Scholz, A; Simonian, G; Stanek, K Z; Szabados, L; Waters, C; Wilson, R W

    2015-01-01

    We report the discovery and characterisation of a deeply eclipsing AM CVn-system, Gaia14aae (= ASSASN-14cn). Gaia14aae was identified independently by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014) and by the Gaia Science Alerts project, during two separate outbursts. A third outburst is seen in archival Pan-STARRS-1 (PS1; Schlafly et al. 2012; Tonry et al. 2012; Magnier et al. 2013) and ASAS-SN data. Spectroscopy reveals a hot, hydrogen-deficient spectrum with clear double-peaked emission lines, consistent with an accreting double degenerate classification. We use follow-up photometry to constrain the orbital parameters of the system. We find an orbital period of 49.71 min, which places Gaia14aae at the long period extremum of the outbursting AM CVn period distribution. Gaia14aae is dominated by the light from its accreting white dwarf. Assuming an orbital inclination of 90 degrees for the binary system, the contact phases of the white dwarf lead to lower limits of 0.78 M solar an...

  5. 1.Basic Properties of Stars This is the Sun during a total eclipse. The Sun, our closest star, is very much

    E-Print Network [OSTI]

    Peletier, Reynier

    1.Basic Properties of Stars This is the Sun during a total eclipse. The Sun, our closest star of the knowledge that we currently have about stars has been derived by studying the Sun. In this module, we start Solar System: the Sun. For the Sun we have: LTM = 4 1026 W MTM = 2 1030 kg RTM = 7 105 km (T ~ 6000K

  6. Exploring the prominence-corona connection and its expansion into the outer corona using total solar eclipse observations

    SciTech Connect (OSTI)

    Habbal, Shadia Rifai; Morgan, Huw; Druckmller, Miloslav

    2014-10-01

    Prominences constitute the most complex magnetic structures in the solar corona. The ubiquitous presence of their seemingly confined dense and cool plasma in an otherwise million-degree environment remains a puzzle. Using a decade of white light total solar eclipse observations, we show how these images reveal an intricate relationship between prominences and coronal structures both in their immediate vicinity, known as coronal cavities, and in the extended corona out to several solar radii. Observations of suspended prominences and twisted helical structures spanning several solar radii are central to these findings. The different manifestations of the prominence-corona interface that emerge from this study underscore the fundamental role played by prominences in defining and controlling the complex expansion and dynamic behavior of the solar magnetic field in the neighborhood of magnetic polarity reversal regions. This study suggests that the unraveling of prominences and the outward expansion of the helical twisted field lines linked to them could be the solar origin of twisted magnetic flux ropes detected in interplanetary space, and of the mechanism by which the Sun sheds its magnetic helicity. This work also underscores the likely role of the prominence-corona interface as a source of the slow solar wind.

  7. The Standardisation and Sequencing of Solar Eclipse Images for the Eclipse Megamovie Project

    E-Print Network [OSTI]

    Krista, Larisza

    2015-01-01

    We present a new tool, the Solar Eclipse Image Standardisation and Sequencing (SEISS), developed to process multi-source total solar eclipse images by adjusting them to the same standard of size, resolution, and orientation. Furthermore, by analysing the eclipse images we can determine the relative time between the observations and order them to create a movie of the observed total solar eclipse sequence. We successfully processed images taken at the 14 November 2012 total solar eclipse that occurred in Queensland, Australia, and created a short eclipse proto-movie. The SEISS tool was developed for the Eclipse Megamovie Project (EMP: https://www.eclipsemegamovie.org), with the goal of processing thousands of images taken by the public during solar eclipse events. EMP is a collaboration among multiple institutes aiming to engage and advance the public interest in solar eclipses and the science of the Sun-Earth connection.

  8. The solar eclipse is indeed a momentous, or at least visually entertain-ing and curious happening in astrology.

    E-Print Network [OSTI]

    Little, John B.

    The solar eclipse is indeed a momentous, or at least visually entertain- ing and curious happening recordings of lunar and solar eclipses. 2 #12;The Dresden Codex was for the Mayans a way to predict eclipses likely that Martin Meinshausen proposed that this data was related to the timing of series of solar

  9. Total Eclipse of the Heart

    E-Print Network [OSTI]

    Flamingo

    2001-01-01

    of the iron elements. The research of this thesis uses the combined treatments of silicone oil (to treat the wood) and electrolytic reduction [ER] (to stabilize the metals), with minimal disassembly. It was discovered that prolonged exposure of the wood...

  10. Gearing Up for Epsilon Aurigae's First Eclipse of the Millennium

    E-Print Network [OSTI]

    J. L. Hopkins; L. Schanne; R. E. Stencel

    2008-07-17

    The mysterious 3rd magnitude long period eclipsing binary star system epsilon Aurigae is predicted to be starting its 2 year eclipse in the late summer of 2009. While this is when the real excitement starts, much is to be learned before first contact. This paper discusses current observational results that have accumulated thus far, using photometric monitoring, H-alpha spectroscopy and with other data sources. Key among the findings are that (1) the low amplitude light variation quasi-period has decreased significantly over the past 20 years, and (2) that the duration of egress, eclipse-to-eclipse has been decreasing, while the duration of total eclipse has been increasing. The website for the observing campaign is: www.du.edu/~rstencel/epsaur.htm .

  11. Nature of eclipsing pulsars

    E-Print Network [OSTI]

    David Khechinashvili; George Melikidze; Janusz Gil

    2000-01-08

    We present a model for pulsar radio eclipses in some binary systems, and test this model for PSRs B1957+20 and J2051-0827. We suggest that in these binaries the companion stars are degenerate dwarfs with strong surface magnetic fields. The magnetospheres of these stars are permanently infused by the relativistic particles of the pulsar wind. We argue that the radio waves emitted by the pulsar split into the eigenmodes of the electron-positron plasma as they enter the companion's magnetosphere and are then strongly damped due to cyclotron resonance with the ambient plasma particles. Our model explains in a natural way the anomalous duration and behavior of radio eclipses observed in such systems. In particular, it provides stable, continuous, and frequency-dependent eclipses, in agreement with the observations. We predict a significant variation of linear polarization both at eclipse ingress and egress. In this paper we also suggest several possible mechanisms of generation of the optical and $X$-ray emission observed from these binary systems.

  12. Eclipse | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation9)askDoubleEERESoda LakeEcho 1-7 WindEclipse Jump

  13. LUNAR SOIL SIMULATION TRAFFICABILITY PARAMETERS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LUNAR SOIL SIMULATION and TRAFFICABILITY PARAMETERS by W. David Carrier, III Lunar Geotechnical.0 RECOMMENDED LUNAR SOIL TRAFFICABILITY PARAMETERS Table 9.14 in the Lunar Sourcebook (Carrier et al. 1991, p. 529) lists the current recommended lunar soil trafficability parameters: bc = 0.017 N/cm2 bN = 35 K

  14. Frontispiece Advanced Lunar Base

    E-Print Network [OSTI]

    Rathbun, Julie A.

    inhabitants may use chemical reactors to combine hydrogen brought from Earth with oxygen found in lunar soil to make their water. The pioneers sought temporary shelter under trees or in the lee of a cliff and built for their shelter or cover space station modules with lunar regolith for radiation protection. The pioneers moved

  15. Citizen Science on the Faroe Islands in Advance of an Eclipse

    E-Print Network [OSTI]

    Sims, Geoff

    2015-01-01

    On 2015 March 20, a total solar eclipse will occur in the North Atlantic, with the Kingdom of Denmark's Faroe Islands and Norway's Svalbard archipelago (formerly Spitzbergen) being the only options for land-based observing. The region is known for wild, unpredictable, and often cloudy conditions, which potentially pose a serious threat for people hoping to view the spectacle. We report on a citizen-science, weather-monitoring project, based in the Faroe Islands, which was conducted in March 2014 - one year prior to the eclipse. The project aimed to promote awareness of the eclipse among the local communities, with the data collected providing a quantitative overview of typical weather conditions that may be expected in 2015. It also allows us to validate the usefulness of short-term weather forecasts, which may be used to increase the probability of observing the eclipse.

  16. INFRARED STUDIES OF EPSILON AURIGAE IN ECLIPSE

    SciTech Connect (OSTI)

    Stencel, Robert E.; Kloppenborg, Brian K.; Wall, Randall E.; Hopkins, Jeffrey L.; Howell, Steve B.; Hoard, D. W.; Rayner, John; Bus, Schelte; Tokunaga, Alan; Sitko, Michael L.; Bradford, Suellen; Russell, Ray W.; Lynch, David K.; Hammel, Heidi; Whitney, Barbara; Orton, Glenn; Yanamandra-Fisher, Padma; Hora, Joseph L.; Hinz, Philip; Hoffmann, William; and others

    2011-11-15

    We report here on a series of medium resolution spectro-photometric observations of the enigmatic long period eclipsing binary epsilon Aurigae, during its eclipse interval of 2009-2011, using near-infrared spectra obtained with SpeX on the Infrared Telescope Facility (IRTF), mid-infrared spectra obtained with BASS on AOES and IRTF, MIRSI on IRTF, and MIRAC4 on the MMT, along with mid-infrared photometry using MIRSI on IRTF and MIRAC4 on the MMT, plus 1995-2000 timeframe published photometry and data obtained with Denver's TNTCAM2 at WIRO. The goals of these observations included: (1) comparing eclipse depths with prior eclipse data, (2) confirming the re-appearance of CO absorption bands at and after mid-eclipse, associated with sublimation in the disk, (3) seeking evidence for any mid-infrared solid state spectral features from particles in the disk, and (4) providing evidence that the externally irradiated disk has azimuthal temperature differences. IR eclipse depths appear similar to those observed during the most recent (1983) eclipse, although evidence for post-mid-eclipse disk temperature increase is present, due to F star heated portions of the disk coming into view. Molecular CO absorption returned 57 days after nominal mid-eclipse, but was not detected at mid-eclipse plus 34 days, narrowing the association with differentially heated sub-regions in the disk. Transient He I 10830A absorption was detected at mid-eclipse, persisting for at least 90 days thereafter, providing a diagnostic for the hot central region. The lack of solid-state features in Spitzer Infrared Spectrograph, BASS, and MIRAC spectra to date suggests the dominance of large particles (micron-sized) in the disk. Based on these observations, mid-infrared studies out of eclipse can directly monitor and map the disk thermal changes, and better constrain disk opacity and thermal conductivity.

  17. Eclipse

    E-Print Network [OSTI]

    Rathbone, Wendy

    1983-01-01

    ? Or on the bridge for that matter?" He put both hands to his head and pressed. This was getting quite difficult. And frustrating. "I'm trying,::Bones, believe me. I just want to get back te work." I ' , III knOil." - -The sky was red. The shad= darkered inte... asleep eighteen point two four hours. Jim, is everything all right?" He put his hands up to his eyes and pressed. White and gold ripped through the black. There was no physical pain yet his mind felt as though it was breaking up. He fell back onto...

  18. About Lunars, part 3

    E-Print Network [OSTI]

    George Huxtable

    2010-03-06

    The difference with a lunar is that the observer is not measuring an altitude, straight .... symbol ^2 means "to the power 2", or more simply "squared". ...... last summer, over a period of about 1 hour, at a time when the Moon was quite high in the ..... wind. If wind is a problem, surround the tray with a wind-break, or even cover it...

  19. Frontispiece Advanced Lunar Base

    E-Print Network [OSTI]

    Rathbun, Julie A.

    chemical reactors to combine hydrogen brought from Earth with oxygen found in lunar soil to make their water. The pioneers sought temporary shelter under trees or in the lee of a cliff and built sod houses as their first homes on the new land; settlers of the Moon may seek out lava tubes for their shelter or cover

  20. The simplest method to measure the geocentric lunar distance: a case of citizen science

    E-Print Network [OSTI]

    Zuluaga, Jorge I; Ferrin, Ignacio

    2014-01-01

    We present the results of measuring the geocentric lunar distance using what we propose is the simplest method to achieve a precise result. Although lunar distance has been systematically measured to a precision of few millimeters using powerful lasers and retroreflectors installed on the moon by the Apollo missions, the method devised and applied here can be readily used by nonscientist citizens (e.g. amateur astronomers or students) and it requires only a good digital camera. After launching a citizen science project called the Aristarchus Campaign, intended to involve astronomy enthusiasts in scientific measurement of the Lunar Eclipse of 15 April 2014, we compiled and measured a series of pictures obtained by one of us (J.C. Figueroa). These measurements allowed us to estimate the lunar distance to a precision of 3%. We describe here how to perform the measurements and the method to calculate from them the geocentric lunar distance using only the pictures time stamps and a precise measurement of the insta...

  1. Gravitational lensing in eclipsing binary stars

    E-Print Network [OSTI]

    T. R. Marsh

    2000-12-18

    I consider the effect of the gravitational deflection of light upon the light curves of eclipsing binary stars, focussing mainly upon systems containing at least one white dwarf component. In absolute terms the effects are small, however they are strongest at the time of secondary eclipse when the white dwarf transits its companion, and act to reduce the depth of this feature. If not accounted for, this may lead to under-estimation of the radius of the white dwarf compared to that of its companion. I show that the effect is significant for plausible binary parameters, and that it leads to ~25% reduction in the transit depth in the system KPD 1930+2752. The reduction of eclipse depth is degenerate with the stellar radius ratio, and therefore cannot be used to establish the existence of lensing. A second order effect of the light bending is to steepen the ingress and egress features of the secondary eclipse relative to the primary eclipse, although it will be difficult to see this in practice. I consider also binaries containing neutron stars and black-holes. I conclude that, although relatively large effects are possible in such systems, a combination of rarity, faintness and intrinsic variability make it unlikely that lensing will be detectable in them.

  2. Uses of lunar sulfur

    SciTech Connect (OSTI)

    Vaniman, D.T.; Pettit, D.R.; Heiken, G.

    1988-01-01

    Sulfur and sulfur compounds have a wide range of applications for their fluid, electrical, chemical and biochemical properties. Although low in abundance on the Moon (/approximately/0.1% in mare soils), sulfur is surface-correlated and relatively extractable. Co-production of sulfur during oxygen extraction from ilmenite-rich soils could yield sulfur in masses up to 10% of the mass of oxygen produced. Sulfur deserves serious consideration as a lunar resource. 29 refs., 3 figs.

  3. An Eclipsing "Blue Straggler" V228 from 47 Tuc: Evolutionary Consideration

    E-Print Network [OSTI]

    Marek J. Sarna

    2007-12-27

    We perform evolutionary calculations of binary stars to find progenitors of system with parameters similar to the eclipsing binary system V228. We show that a V228 binary system may be formed starting with an initial binary system which has a low main sequence star as an accretor. We also show that the best fitting model implies loss of about 50 per cent of initial total orbital momentum but only 5 per cent of initial total mass.

  4. The Partial Solar Eclipse of Friday 20th March 2015 The largest partial solar eclipse visible from Northern Ireland since 29 June 1927, when

    E-Print Network [OSTI]

    The Partial Solar Eclipse of Friday 20th March 2015 The largest partial solar eclipse visible from:26 and 10:38 on the morning of Friday 20th March 2015. Even the famous solar eclipse of 11 August 1999 Belfast. The 20 March 2015 eclipse is the first partial solar eclipse visible from Northern Ireland since

  5. Eclipsing Binaries in the WTS 19a Field

    E-Print Network [OSTI]

    Pinfield, David J.

    Eclipsing Binaries in the WTS 19a Field Hristo Stoev Department of Astrophysics, Centre of the WTS light curves Results from the search of variable stars in the field Focus on eclipsing binaries;Summary and outlook 66 high-quality light curves of eclipsing binaries have been identified in the WTS 19a

  6. Nicholas Loulloudes March 3rd , 2009g-Eclipse

    E-Print Network [OSTI]

    Pallis, George

    Nicholas Loulloudes March 3rd , 2009g-Eclipse Testing and Benchmarking Grid Infrastructures using March 3rd , 2009g-Eclipse Overview Grid Reality The Problem g-Eclipse Framework The Idea Technical Overview Tests Framework Benchmark Framework Future Work #12;Nicholas Loulloudes March 3rd

  7. The architecture of the hierarchical triple star KOI 928 from eclipse timing variations seen in Kepler photometry

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Steffen, J. H.; Quinn, S. N.; Borucki, W. J.; Brugamyer, E.; Bryson, S. T.; Buchhave, L. A.; Cochran, W. D.; Endl, M.; Fabrycky, D C.; Ford, E. B.; et al

    2011-10-01

    We present a hierarchical triple star system (KIC 9140402) where a low mass eclipsing binary orbits a more massive third star. The orbital period of the binary (4.98829 Days) is determined by the eclipse times seen in photometry from NASA's Kepler spacecraft. The periodically changing tidal field, due to the eccentric orbit of the binary about the tertiary, causes a change in the orbital period of the binary. The resulting eclipse timing variations provide insight into the dynamics and architecture of this system and allow the inference of the total mass of the binary (0.4240.017Mcircle-dot) and the orbital parameters ofmorethe binary about the central star.less

  8. DISCOVERY AND CHARACTERIZATION OF AN EXTREMELY DEEP-ECLIPSING...

    Office of Scientific and Technical Information (OSTI)

    DISCOVERY AND CHARACTERIZATION OF AN EXTREMELY DEEP-ECLIPSING CATACLYSMIC VARIABLE: LSQ172554.8-643839 Citation Details In-Document Search Title: DISCOVERY AND CHARACTERIZATION OF...

  9. Lunar Sample Compendium C Meyer 2011

    E-Print Network [OSTI]

    Rathbun, Julie A.

    . of water for up to 10 hrs. after the CM was retrieved (Butler 1973, pages 38 and 39). The outer bag Sci. Conf. 1975-2003. Butler P. (1973) Lunar Sample Information Catalog Apollo 17. Lunar Receiving Laboratory. MSC 03211 Curator's Catalog. pp. 447. Heiken G.H. (1974) A catalog of lunar soils. JSC Curator

  10. Discovery of a new class of coronal structures in white light eclipse images

    SciTech Connect (OSTI)

    Druckmller, Miloslav; Habbal, Shadia Rifai; Morgan, Huw

    2014-04-10

    White light images of the solar corona, taken during total solar eclipses, capture the complex dynamic relationship between the coronal plasma and the magnetic field. This relationship can be recorded on timescales of seconds to minutes, within a few solar radii above the solar surface. Rays, large-scale loops, and streamers, which are the brightest structures in these images, have shaped current models of the coronal magnetic field and solar wind flow. We show in this work how the application of novel image processing techniques to unique high-resolution white light eclipse images reveals the presence of a new class of structures, reminiscent of smoke rings, faint nested expanding loops, expanding bubbles, and twisted helical structures. These features are interpreted as snapshots of the dynamical evolution of instabilities developing at prominence-corona interfaces and propagating outward with the solar wind.

  11. Solar Eclipse Anomalies and Wave Refraction

    E-Print Network [OSTI]

    Alasdair Macleod

    2006-10-23

    There is some inconclusive evidence that measurement devices sensitive to local gravitation exhibit anomalous behaviour during solar eclipses. We investigate if these findings can be incorporated into the standard general relativistic model of gravitation. The General Theory of Relativity (GTR) describes gravitation as the response of an object to local spacetime curvature. Gravitational waves travelling at the speed of light are then a necessary mechanism to maintain the required consistency between local curvature and distant gravitating mass. Gravitational waves will certainly be subject to refraction by bodies such as the moon and we explore if such an effect can result in an error in the apparent position of the sources and thereby give rise to the characteristic pattern of response associated with the eclipse anomaly. It is found there are phenomenological similarities, but only if gravitational waves are considered not merely to respond to spacetime curvature but are also significantly affected by the presence of mass, perhaps in a manner analogous to electromagnetic waves propagating through matter.

  12. Free space laser communication experiments from Earth to the Lunar Reconnaissance Orbiter in lunar orbit

    E-Print Network [OSTI]

    Sun, Xiaoli

    Laser communication and ranging experiments were successfully conducted from the satellite laser ranging (SLR) station at NASA Goddard Space Flight Center (GSFC) to the Lunar Reconnaissance Orbiter (LRO) in lunar orbit. ...

  13. Lunar geophysics: The Moon's fundamental shape and paleomagnetism studies

    E-Print Network [OSTI]

    Perera, Viranga

    2014-01-01

    Tectonics. Reviews of Geophysics and Space Physics SANTA CRUZ Lunar geophysics: The Moons fundamental shapeViranga Perera Lunar geophysics: The Moons fundamental

  14. Ten Kepler Eclipsing Binaries Containing the Third Components

    E-Print Network [OSTI]

    Zasche, P; Kucakova, H; Vrastil, J; Jurysek, J; Masek, M; Jelinek, M

    2015-01-01

    Analyzing the available photometry from the Kepler satellite and other databases, we performed detailed light curve modeling of 10 eclipsing binary systems that were found to exhibit a periodic modulation of their orbital periods. All of the selected systems are detached Algol type, with orbital periods from 0.9 to 2.9 days. In total, 9448 times of minimum for these binaries were analyzed in an attempt to identify the period variations caused by the third bodies in these systems. The well-known method of the light-travel time effect was used for the analysis. The orbital periods of the outer bodies were found to be between 1 and 14 years. This hypothesis makes such systems interesting for future prospective detections of these components, despite their low predicted masses. Considering the dynamical interaction between the orbits, the system KIC 3440230 seems to be the most interesting, in which one would expect the detection of some effects (i.e., changing the inclination) even after a few years or decades o...

  15. Properties OF M31. V. 298 eclipsing binaries from PAndromeda

    SciTech Connect (OSTI)

    Lee, C.-H.; Koppenhoefer, J.; Seitz, S.; Bender, R.; Riffeser, A.; Kodric, M.; Hopp, U.; Snigula, J.; Gssl, C.; Kudritzki, R.-P.; Burgett, W.; Chambers, K.; Hodapp, K.; Kaiser, N.; Waters, C.

    2014-12-10

    The goal of this work is to conduct a photometric study of eclipsing binaries in M31. We apply a modified box-fitting algorithm to search for eclipsing binary candidates and determine their period. We classify these candidates into detached, semi-detached, and contact systems using the Fourier decomposition method. We cross-match the position of our detached candidates with the photometry from Local Group Survey and select 13 candidates brighter than 20.5 mag in V. The relative physical parameters of these detached candidates are further characterized with the Detached Eclipsing Binary Light curve fitter (DEBiL) by Devor. We will follow up the detached eclipsing binaries spectroscopically and determine the distance to M31.

  16. Automatic classification of eclipsing binaries light curves using neural networks

    E-Print Network [OSTI]

    L. M. Sarro; C. Snchez-Fernndez; A. Gimnez

    2005-11-11

    In this work we present a system for the automatic classification of the light curves of eclipsing binaries. This system is based on a classification scheme that aims to separate eclipsing binary sistems according to their geometrical configuration in a modified version of the traditional classification scheme. The classification is performed by a Bayesian ensemble of neural networks trained with {\\em Hipparcos} data of seven different categories including eccentric binary systems and two types of pulsating light curve morphologies.

  17. The LUCIS Constellation An Evolvable Lunar

    E-Print Network [OSTI]

    Born, George

    relay satellite system to enable communication and navigation for NASA orbiting, landing, and roving environmental parameters and lunar resources Test technical capabilities as needed Human return to the moon & Navigation architecture recommendations Lunar relay architecture begins with a constellation to support

  18. LUNAR MINERALS James Papike, Lawrence Taylor, and Steven Simon

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LUNAR MINERALS James Papike, Lawrence Taylor, and Steven Simon The lunar rocks described--make it easy to distinguish them from terrestrial rocks. However, the minerals that make up lunar rocks are (with a few notable exceptions) minerals that are also found on Earth. Both lunar and terrestrial rocks

  19. Solar Physics and Solar Eclipses Proceedings of an International Symposium held at

    E-Print Network [OSTI]

    -2006 in Libya . . . . . . . . . . . . . . . . . . 55 JEAN-LUC L. J. DIGHAYE The Sun and Solar Eclipses Energy in Libya . . . . . . . . . . . . . . . . . . . . . 153 IBRAHIM M. SALEH Computer SimulationSolar Physics and Solar Eclipses Proceedings of an International Symposium held at Waw an Namos

  20. Manhattan --3D City Visualizations in Eclipse Alberto Bacchelli, Francesco Rigotti, Lile Hattori, and Michele Lanza

    E-Print Network [OSTI]

    Lanza, Michele

    tools already in use. We present Manhattan, an Eclipse plugin that visualizes projects in the workspace in isolation: When other developers modify the same project in their Eclipse instance, Manhattan visualizes of the activity of the team. Manhattan visualizes projects in the Eclipse workspace by using the 3D city metaphor

  1. Transit and secondary eclipse photometry in the near-infrared

    E-Print Network [OSTI]

    Ignas Snellen

    2007-05-02

    Near-infrared photometry of transiting extrasolar planets can be of great scientific value. It is however not straightforward to reach the necessary millimagnitude precision. Here we report on our attempts to observe transits and secondary eclipses of several extrasolar planets at 2.2 micron. Best results have been obtained on OGLE-TR-113b using the SOFI near-infrared camera on ESO's New Technology Telescope. Its K-band transit shows a remarkably flat bottom indicating low stellar limb darkening. Secondary eclipse photometry has resulted in a formal 3 sigma detection, but residual systematic effects make this detection rather uncertain.

  2. Lunar descent using sequential engine shutdown

    E-Print Network [OSTI]

    Springmann, Philip N

    2006-01-01

    The notion of sequential engine shutdown is introduced and its application to lunar descent is motivated. The concept calls for the utilization of multiple fixed thrust engines in place of a single continuously throttleable ...

  3. Lunar magnetic field measurements with a cubesat

    E-Print Network [OSTI]

    Garrick-Bethell, Ian

    We have developed a mission concept that uses 3-unit cubesats to perform new measurements of lunar magnetic fields, less than 100 meters above the Moons surface. The mission calls for sending the cubesats on impact ...

  4. Lunar Wireless Power Transfer Feasibility Study

    SciTech Connect (OSTI)

    Sheldon Freid, et al.

    2008-06-01

    This study examines the feasibility of a multi-kilowatt wireless radio frequency (RF) power system to transfer power between lunar base facilities. Initial analyses, show that wireless power transfer (WPT) systems can be more efficient and less expensive than traditional wired approaches for certain lunar and terrestrial applications. The study includes evaluations of the fundamental limitations of lunar WPT systems, the interrelationships of possible operational parameters, and a baseline design approach for a notionial system that could be used in the near future to power remote facilities at a lunar base. Our notional system includes state-of-the-art photovoltaics (PVs), high-efficiency microwave transmitters, low-mass large-aperture high-power transmit antennas, high-efficiency large-area rectenna receiving arrays, and reconfigurable DC combining circuitry.

  5. Lunar Seismic Profiling Experiment Dynamic Analysis

    E-Print Network [OSTI]

    Rathbun, Julie A.

    II I! Lunar Seismic Profiling Experiment Dynamic Analysis CONTENTS Section 1. 0 Assumptions Section. The solid curve is a plot of the specification data for the Design and Qualification of the explosive

  6. Pushing the precision limit of ground-based eclipse photometry

    E-Print Network [OSTI]

    M. Gillon; D. R. Anderson; B. -O. Demory; D. M. Wilson; C. Hellier; D. Queloz; C. Waelkens

    2008-06-30

    Until recently, it was considered by many that ground-based photometry could not reach the high cadence sub-mmag regime because of the presence of the atmosphere. Indeed, high frequency atmospheric noises (mainly scintillation) limit the precision that high SNR photometry can reach within small time bins. If one is ready to damage the sampling of his photometric time-series, binning the data (or using longer exposures) allows to get better errors, but the obtained precision will be finally limited by low frequency noises. To observe several times the same planetary eclipse and to fold the photometry with the orbital period is thus generally considered as the only option to get very well sampled and precise eclipse light curve from the ground. Nevertheless, we show here that reaching the sub-mmag sub-min regime for one eclipse is possible with a ground-based instrument. This has important implications for transiting planets characterization, secondary eclipses measurement and small planets detection from the ground.

  7. An Extreme Analogue of $\\epsilon$ Aurigae: An M-giant Eclipsed Every 69 Years by a Large Opaque Disk Surrounding a Small Hot Source

    E-Print Network [OSTI]

    Rodriguez, Joseph E; Lund, Michael B; Siverd, Robert J; Pepper, Joshua; Tang, Sumin; Kafka, Stella; Gaudi, Scott; Conroy, Kyle E; Beatty, Thomas G; Stevens, Daniel J

    2016-01-01

    We present TYC 2505-672-1 as a newly discovered, remarkable eclipsing system comprising an M-type red giant that undergoes a ~3.45 year long, near-total eclipse (depth of ~4.5 mag) with a very long period of ~69.1 yr. This therefore becomes the longest-period eclipsing binary system yet discovered, more than twice as long as that of the currently longest-period system, $\\epsilon$ Aurigae. We show from analysis of the light curve including both our own data and historical data spanning more than 120 yr and from modeling of the spectral energy distribution, both before and during eclipse, that the red giant primary is orbited by a moderately hot source (T$_{eff}$~8000 K) that is itself surrounded by an extended, opaque circumstellar disk. From the measured ratio of luminosities, the radius of the hot companion must be in the range 0.1-0.5 Rsun (depending on the assumed radius of the red giant primary), which is an order of magnitude smaller than that for a main sequence A star and 1-2 orders of magnitude larger...

  8. Initial observations from the Lunar Orbiter Laser Altimeter (LOLA)

    E-Print Network [OSTI]

    Smith, David Edmund

    As of June 19, 2010, the Lunar Orbiter Laser Altimeter, an instrument on the Lunar Reconnaissance Orbiter, has collected over 2.0 109 measurements of elevation that collectively represent the highest resolution global ...

  9. APOLLO LUNAR SCIENCE PROGRAM REPORT OF PLANNING TEAMS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    AND PETROGRAPHY: SAMPLING AND EXAMINATION OF LUNAR SURFACE MATERIALS IV GEOCHEMISTRY V PASSIVE LUNAR SEISMIC~oved early Apollo Landings on the Moon, on geological field investigations, mineralogy and petrography

  10. An Evolvable Lunar Communication and Navigation Constellation Concept

    E-Print Network [OSTI]

    Born, George

    communication links with the Earth. A lunar relay element will be necessary to provide critical communication and navigation support for the upcoming missions. This paper presents a highly evolvable, low-cost lunar relay; Use lunar exploration activities to further science, and to develop and test new approaches

  11. MICROWAVE PROCESSING OF LUNAR SOIL Lawrence A. Taylor1

    E-Print Network [OSTI]

    Taylor, Lawrence A.

    MICROWAVE PROCESSING OF LUNAR SOIL Lawrence A. Taylor1 and Thomas T. Meek2 The unique properties of lunar regolith make for the extreme coupling of the soil to microwave radiation. Space weathering lunar soil (i.e., 1200-1500 o C) in minutes in a normal kitchen-type 2.45 GHz microwave, almost as fast

  12. LUNAR SEISMIC PROFILING EXPERIMENT HOUSING AND CHARGE ASSEMBLY

    E-Print Network [OSTI]

    Rathbun, Julie A.

    ATM-1094f LUNAR SEISMIC PROFILING EXPERIMENT HOUSING AND CHARGE ASSEMBLY FOAM TEST REPORT PAGE DATE. R. Lewis, Manager Lunar Seismic Profiling Experiment #12;ATM-1094 I LUNAR SEISMIC PROFILING'MNAR SEISMIC PROFILING EXPERIMENT HOUSING AND CHARGE ASSEMBLY FOAM TEST REPORT .C"l. j_ ..LV~ .L v 7"'% I PAGE

  13. Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics by Sarah A. Shull B #12;Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics by Sarah A. Shull to establish a manned outpost on the lunar surface, it is essential to consider the logistics of both

  14. Short-Period Waves That Heat the Corona Detected at the 1999 Eclipse

    E-Print Network [OSTI]

    Jay M. Pasachoff; Bryce A. Babcock; Kevin D. Russell; Daniel B. Seaton

    2002-02-12

    As a part of a study of the cause of solar coronal heating, we searched for high-frequency (~1 Hz) intensity oscillations in coronal loops in the [Fe XIV] coronal green line. We summarize results from observations made at the 11 August 1999 total solar eclipse from Ramnicu-Valcea, Romania, through clear skies. We discuss the image reduction and analysis through two simultaneous series of coronal CCD images digitized at 10 Hz for a total time of about 140 s. One series of images was taken through a 3.6 A filter isolating the 5303 A [Fe XIV] coronal green line and the other through a 100 A filter in the nearby K-corona continuum. Previous observations, described in Pasachoff et al. (2000), showed no evidence for oscillations in the [Fe XIV] green line at a level great than 2% of coronal intensity. We describe several improvements made over the 1998 eclipse that led to increased image clarity and sensitivity. The corona was brighter in 1999 with the solar maximum, further improving the data. We use Fourier analysis to search in the [Fe XIV] channel for intensity oscillations in loops at the base of the corona. Such oscillations in the 1-Hz range are predicted as a result of density fluctuations from the resonant absorption of MHD waves. The dissipation of a significant amount of mechanical energy from the photosphere into the corona through this mechanism could provide sufficient energy to hear the corona. A Monte-Carlo model of the data suggests the presence of enhanced power, particularly in the 0.75-1.0 Hz range, and we conclude that MHD waves remain a viable method for coronal heating.

  15. On the possibility of lunar core phase detection using new seismometers for soft-landers in future lunar missions

    E-Print Network [OSTI]

    Takeuchi, Nozomu

    Planetary exploration Lunar exploration Moonquake Lunar seismicity Lunar core a b s t r a c t Information Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai and evolution of the Moon. Recent studies have indicated that possible seismic energies of core-reflected phases

  16. Astrometric and Light-travel Time Orbits to Detect Low-mass Companions: A Case Study of the Eclipsing System R Canis Majoris

    E-Print Network [OSTI]

    Ignasi Ribas; Frederic Arenou; Edward F. Guinan

    2002-01-10

    We discuss a method to determine orbital properties and masses of low-mass bodies orbiting eclipsing binaries. The analysis combines long-term eclipse timing modulations (light-travel time or LTT effect) with short-term, high-accuracy astrometry. As an illustration of the method, the results of a comprehensive study of Hipparcos astrometry and over a hundred years of eclipse timings of the Algol-type eclipsing binary R Canis Majoris are presented. A simultaneous solution of the astrometry and the LTTs yields an orbital period of P_12=92.8+/-1.3 yr, an LTT semiamplitude of 2574+/-57 s, an angular semi-major axis of a_12=117+/-5 mas, and values of the orbital eccentricity and inclination of e_12=0.49+/-0.05, and i_12=91.7+/-4.7 deg, respectively. Adopting the total mass of R CMa of M_12=1.24+/-0.05 Mo, the mass of the third body is M_3=0.34+/-0.02 Mo and the semi-major axis of its orbit is a_3=18.7+/-1.7 AU. From its mass, the third body is either a dM3-4 star or, more unlikely, a white dwarf. With the upcoming microarcsecond-level astrometric missions, the technique that we discuss can be successfully applied to detect and characterize long-period planetary-size objects and brown dwarfs around eclipsing binaries. Possibilities for extending the method to pulsating variables or stars with transiting planets are briefly addressed.

  17. Total Imports

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths30,2,8,Product: Total Crude

  18. The lunar Askaryan technique: a technical roadmap

    E-Print Network [OSTI]

    Bray, J D; Buitink, S; Dagkesamanskii, R D; Ekers, R D; Falcke, H; Gayley, K G; Huege, T; James, C W; Mevius, M; Mutel, R L; Protheroe, R J; Scholten, O; Spencer, R E; ter Veen, S

    2015-01-01

    The lunar Askaryan technique, which involves searching for Askaryan radio pulses from particle cascades in the outer layers of the Moon, is a method for using the lunar surface as an extremely large detector of ultra-high-energy particles. The high time resolution required to detect these pulses, which have a duration of around a nanosecond, puts this technique in a regime quite different from other forms of radio astronomy, with a unique set of associated technical challenges which have been addressed in a series of experiments by various groups. Implementing the methods and techniques developed by these groups for detecting lunar Askaryan pulses will be important for a future experiment with the Square Kilometre Array (SKA), which is expected to have sufficient sensitivity to allow the first positive detection using this technique. Key issues include correction for ionospheric dispersion, beamforming, efficient triggering, and the exclusion of spurious events from radio-frequency interference. We review the...

  19. AA Dor - An Eclipsing sdOB - Brown Dwarf Binary

    E-Print Network [OSTI]

    Thomas Rauch

    2003-11-25

    AA Dor is an eclipsing, close, post common-envelope binary consisting of a sdOB primary star and an unseen secondary with an extraordinary small mass - formally a brown dwarf. The brown dwarf may have been a former planet which survived a common envelope phase and has even gained mass. A recent determination of the components' masses from results of NLTE spectral analysis and subsequent comparison to evolutionary tracks shows a discrepancy to masses derived from radial-velocity and the eclipse curves. Phase-resolved high-resolution and high-SN spectroscopy was carried out in order to investigate on this problem. We present results of a NLTE spectral analysis of the primary, an analysis of its orbital parameters, and discuss possible evolutionary scenarios.

  20. Inter-Eclipse Spectroscopic Snapshot of Epsilon Aurigae with HST

    E-Print Network [OSTI]

    Yaron Sheffer; David L. Lambert

    1999-05-11

    A single-epoch low resolution GHRS spectrum of the eclipsing binary Epsilon Aurigae was obtained while the secondary was orbiting towards eclipse by the primary. The detected emission line profiles have the appearance of double- peaked emission with a stronger red component at a radial velocity of +108 km/s, and a weaker blue emission bump at ca. -92 km/s. We compare these observational results with known orbital properties of the epsilon Aur binary system, and propose that the emission originates at the inner radius of the disk surrounding the enigmatic secondary. We interpret the kinematic data as a possible means to uncover the underlying stellar masses and we speculate about the binary's relationship to other "high-mass" models.

  1. The DWARF project: Eclipsing binaries - precise clocks to discover exoplanets

    E-Print Network [OSTI]

    Pribulla, T; von Eiff, M Ammler -; Andreev, M; Aslantrk, A; Awadalla, N; Balu?ansk, D; Bonanno, A; Boi?, H; Catanzaro, G; elik, L; Christopoulou, P E; Covino, E; Cusano, F; Dimitrov, D; Dubovsk, P; Esmer, E M; Frasca, A; Hamblek, ?; Hanna, M; Hanslmeier, A; Kalomeni, B; Kjurkchieva, D P; Krushevska, V; Kudzej, I; Kundra, E; Kuznyetsova, Yu; Lee, J W; Leitzinger, M; Maciejewski, G; Moldovan, D; Morais, M H M; Mugrauer, M; Neuhuser, R; Niedzielski, A; Odert, P; Ohlert, J; zavc?, ?; Papageorgiou, A; Parimucha, ; Poddan, S; Pop, A; Raetz, M; Raetz, S; Romanyuk, Ya; Rudjak, D; Schulz, J; ?enavc?, H V; Szalai, T; Szkely, P; Sudar, D; Tezcan, C T; Trn, M E; Turcu, V; Vince, O; Zejda, M

    2012-01-01

    We present a new observational campaign, DWARF, aimed at detection of circumbinary extrasolar planets using the timing of the minima of low-mass eclipsing binaries. The observations will be performed within an extensive network of relatively small to medium-size telescopes with apertures of ~20-200 cm. The starting sample of the objects to be monitored contains (i) low-mass eclipsing binaries with M and K components, (ii) short-period binaries with sdB or sdO component, and (iii) post-common-envelope systems containing a WD, which enable to determine minima with high precision. Since the amplitude of the timing signal increases with the orbital period of an invisible third component, the timescale of project is long, at least 5-10 years. The paper gives simple formulas to estimate suitability of individual eclipsing binaries for the circumbinary planet detection. Intrinsic variability of the binaries (photospheric spots, flares, pulsation etc.) limiting the accuracy of the minima timing is also discussed. The...

  2. Safety criteria for flying E-sail through solar eclipse

    E-Print Network [OSTI]

    Janhunen, Pekka

    2015-01-01

    The electric solar wind sail (E-sail) propellantless propulsion device uses long, charged metallic tethers to tap momentum from the solar wind to produce spacecraft propulsion. If flying through planetary or moon eclipse, the long E-sail tethers can undergo significant thermal contraction and expansion. Rapid shortening of the tether increases its tension due to inertia of the tether and a Remote Unit that is located on the tether tip (a Remote Unit is part of typical E-sail designs). We analyse by numerical simulation the conditions under which eclipse induced stresses are safe for E-sail tethers. We calculate the closest safe approach distances for Earth, Moon, Venus, Mars, Jupiter, Ceres and an exemplary 300 km main belt asteroid Interamnia for circular, parabolic and hyperbolic orbits. We find that any kind of eclipsing is safe beyond approximately 2.5 au distance, but for terrestrial planets safety depends on the parameters of the orbit. For example, for Mars the safe distance with 20 km E-sail tether li...

  3. Lunar Sample Compendium C Meyer 2010

    E-Print Network [OSTI]

    Rathbun, Julie A.

    2672 grams Mineralogical Mode of 15058 Sample catalog Rhodes and Juan et Butler 1971 Hubbard 1973 al basalts returned from the moon, but its lunar orientation is not known with much certainty. The catalog are fluorapatite with minor chloroapatite and trace water (~2400 1100 ppm H2 O). Chemistry O'Kelley et al. (1972

  4. Friday, March 17, 2006 LUNAR REMOTE SENSING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Friday, March 17, 2006 LUNAR REMOTE SENSING 1:30 p.m. Crystal Ballroom B Chairs: M. S. Robinson D variations due to photometry can mimic those attributed to composition in remote sensing data of planetary D. B. Remote Sensing and Geologic Studies of the Southeastern Quadrant of the Moon [#1815] We report

  5. Lunar Seismic Profiling Experiment PAGE 1 OF 5

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Lunar Seismic Profiling Experiment (LSPE) ATM 1040 I PAGE 1 OF 5 Aaraapace 5yst:al'n8Divllllon Non~f" /;Z#4-tl-..· SJ Ellison, Mgr. ALSEP Reliability #12;Lunar Seismic Profiling Experin1ent \\LSPEJ Non Bulova BxA BxA, Geotech Geotech Geotech BxA BxA BxA BxA BxA Geotech Geotech #12;Lunar Seismic Pr, g

  6. The Lunar Cherenkov Technique: From Parkes Onwards

    E-Print Network [OSTI]

    C. W. James; R. D. Ekers; R. A. McFadden; R. J. Protheroe

    2007-09-03

    The lunar Cherenkov technique, which aims to detect the coherent Cherenkov radiation produced when UHE particles interact in the lunar regolith, was first attempted with the Parkes radio-telescope in 1995, though the theory was not sufficiently developed at this time to calculate a limit on the UHE neutrino flux from the non-observation. Since then, the technique has evolved to include experiments utilising lower frequencies, wider bandwidths, and entire arrays of antenna. We develop a simulation to analyse the full range of experiments, and calculate the UHE neutrino flux limit from the Parkes experiment, including the directional dependence. Our results suggest a methodology for planning future observations, and demonstrate how to utilise all available information on the nature of radio pulses from the Moon for the detection of UHE particles.

  7. The ephemeris, orbital decay, and masses of 10 eclipsing HMXBs

    E-Print Network [OSTI]

    Falanga, M; Lutovinov, A; Bonnet-Bidaud, J M; Fetisova, Y; Puls, J

    2015-01-01

    We take advantage of more than 10 years of monitoring of the eclipsing HMXB systems LMC X-4, Cen X-3, 4U 1700-377, 4U 1538-522, SMC X-1, IGR J18027-2016, Vela X-1, IGR J17252-3616, XTE J1855-026, and OAO 1657-415 with the ASM on-board RXTE and ISGRI on-board INTEGRAL to update their ephemeris. These results are used to refine previous measurements of the orbital period decay of all sources (where available) and provide the first accurate values of the apsidal advance in Vela X-1 and 4U 1538-522. Updated values for the masses of the neutron stars hosted in the ten HMXBs are also provided, as well as the long-term lightcurves folded on the sources best determined orbital parameters. These lightcurves reveal complex eclipse ingresses and egresses, that are understood mostly as being due to the presence of accretion wakes. The results reported in this paper constitute a database to be used for population and evolutionary studies of HMXBs, as well as theoretical modelling of long-term accretion in wind-fed X-ray b...

  8. LIMB-DARKENING COEFFICIENTS FOR ECLIPSING WHITE DWARFS

    SciTech Connect (OSTI)

    Gianninas, A.; Strickland, B. D.; Kilic, Mukremin [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks St., Norman, OK 73019 (United States)] [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks St., Norman, OK 73019 (United States); Bergeron, P., E-mail: alexg@nhn.ou.edu, E-mail: benstrickland@ou.edu, E-mail: kilic@ou.edu, E-mail: bergeron@astro.umontreal.ca [Departement de Physique, Universite de Montreal, C.P. 6128, Succ. Centre-Ville, Montreal, Quebec H3C 3J7 (Canada)

    2013-03-20

    We present extensive calculations of linear and nonlinear limb-darkening coefficients as well as complete intensity profiles appropriate for modeling the light-curves of eclipsing white dwarfs. We compute limb-darkening coefficients in the Johnson-Kron-Cousins UBVRI photometric system as well as the Large Synoptic Survey Telescope (LSST) ugrizy system using the most up to date model atmospheres available. In all, we provide the coefficients for seven different limb-darkening laws. We describe the variations of these coefficients as a function of the atmospheric parameters, including the effects of convection at low effective temperatures. Finally, we discuss the importance of having readily available limb-darkening coefficients in the context of present and future photometric surveys like the LSST, Palomar Transient Factory, and the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). The LSST, for example, may find {approx}10{sup 5} eclipsing white dwarfs. The limb-darkening calculations presented here will be an essential part of the detailed analysis of all of these systems.

  9. Spitzer Secondary Eclipses of the Dense, Modestly-irradiated, Giant Exoplanet HAT-P-20b Using Pixel-Level Decorrelation

    E-Print Network [OSTI]

    Deming, Drake; Kammer, Joshua; Fulton, Benjamin J; Ingalls, James; Carey, Sean; Burrows, Adam; Fortney, Jonathan J; Todorov, Kamen; Agol, Eric; Cowan, Nicolas; Desert, Jean-Michel; Fraine, Jonathan; Langton, Jonathan; Morley, Caroline; Showman, Adam P

    2014-01-01

    HAT-P-20b is a giant exoplanet that orbits a metal-rich star. The planet itself has a high total density, suggesting that it may also have a high metallicity in its atmosphere. We analyze two eclipses of the planet in each of the 3.6- and 4.5 micron bands of Warm Spitzer. These data exhibit intra-pixel detector sensitivity fluctuations that were resistant to traditional decorrelation methods. We have developed a simple, powerful, and radically different method to correct the intra-pixel effect for Warm Spitzer data, which we call pixel-level decorrelation (PLD). PLD corrects the intra-pixel effect very effectively, but without explicitly using - or even measuring - the fluctuations in the apparent position of the stellar image. We illustrate and validate PLD using synthetic and real data, and comparing the results to previous analyses. PLD can significantly reduce or eliminate red noise in Spitzer secondary eclipse photometry, even for eclipses that have proven to be intractable using other methods. Our succe...

  10. SU-E-T-508: End to End Testing of a Prototype Eclipse Module for Planning Modulated Arc Therapy On the Siemens Platform

    SciTech Connect (OSTI)

    Huang, L [Huntsman Cancer Hospital, Salt Lake City, UT (United States); Sarkar, V [University of Utah Hospitals, Salt Lake City, UT (United States); Spiessens, S [Varian Medical Systems France, Buc Cedex (France); Rassiah-Szegedi, P; Huang, Y; Salter, B [University Utah, Salt Lake City, UT (United States); Zhao, H [University of Utah, Salt Lake City, UT (United States); Szegedi, M [Huntsman Cancer Hospital, The University of Utah, Salt Lake City, UT (United States)

    2014-06-01

    Purpose: The latest clinical implementation of the Siemens Artiste linac allows for delivery of modulated arcs (mARC) using full-field flattening filter free (FFF) photon beams. The maximum doserate of 2000 MU/min is well suited for high dose treatments such as SBRT. We tested and report on the performance of a prototype Eclipse TPS module supporting mARC capability on the Artiste platform. Method: our spine SBRT patients originally treated with 12/13 field static-gantry IMRT (SGIMRT) were chosen for this study. These plans were designed to satisfy RTOG0631 guidelines with a prescription of 16Gy in a single fraction. The cases were re-planned as mARC plans in the prototype Eclipse module using the 7MV FFF beam and required to satisfy RTOG0631 requirements. All plans were transferred from Eclipse, delivered on a Siemens Artiste linac and dose-validated using the Delta4 system. Results: All treatment plans were straightforwardly developed, in timely fashion, without challenge or inefficiency using the prototype module. Due to the limited number of segments in a single arc, mARC plans required 2-3 full arcs to yield plan quality comparable to SGIMRT plans containing over 250 total segments. The average (3%/3mm) gamma pass-rate for all arcs was 98.51.1%, thus demonstrating both excellent dose prediction by the AAA dose algorithm and excellent delivery fidelity. Mean delivery times for the mARC plans(10.51.7min) were 50-70% lower than the SGIMRT plans(262min), with both delivered at 2000 MU/min. Conclusion: A prototype Eclipse module capable of planning for Burst Mode modulated arc delivery on the Artiste platform has been tested and found to perform efficiently and accurately for treatment plan development and delivered-dose prediction. Further investigation of more treatment sites is being carried out and data will be presented.

  11. BENCHMARK TESTS FOR MARKOV CHAIN MONTE CARLO FITTING OF EXOPLANET ECLIPSE OBSERVATIONS

    SciTech Connect (OSTI)

    Rogers, Justin; Lopez-Morales, Mercedes; Apai, Daniel; Adams, Elisabeth

    2013-04-10

    Ground-based observations of exoplanet eclipses provide important clues to the planets' atmospheric physics, yet systematics in light curve analyses are not fully understood. It is unknown if measurements suggesting near-infrared flux densities brighter than models predict are real, or artifacts of the analysis processes. We created a large suite of model light curves, using both synthetic and real noise, and tested the common process of light curve modeling and parameter optimization with a Markov Chain Monte Carlo algorithm. With synthetic white noise models, we find that input eclipse signals are generally recovered within 10% accuracy for eclipse depths greater than the noise amplitude, and to smaller depths for higher sampling rates and longer baselines. Red noise models see greater discrepancies between input and measured eclipse signals, often biased in one direction. Finally, we find that in real data, systematic biases result even with a complex model to account for trends, and significant false eclipse signals may appear in a non-Gaussian distribution. To quantify the bias and validate an eclipse measurement, we compare both the planet-hosting star and several of its neighbors to a separately chosen control sample of field stars. Re-examining the Rogers et al. Ks-band measurement of CoRoT-1b finds an eclipse 3190{sup +370}{sub -440} ppm deep centered at {phi}{sub me} = 0.50418{sup +0.00197}{sub -0.00203}. Finally, we provide and recommend the use of selected data sets we generated as a benchmark test for eclipse modeling and analysis routines, and propose criteria to verify eclipse detections.

  12. LUNAR SEISMIC PROFILING EXPERIMENT DESIGN VERIFICATION THERMAL PAGI OF

    E-Print Network [OSTI]

    Rathbun, Julie A.

    ATM 1109 LUNAR SEISMIC PROFILING EXPERIMENT DESIGN VERIFICATION THERMAL PAGI OF VACUUM TEST DATE 9 SEISMIC PROFILING EXPERIMENT DESIGN VERIFICATION THERMAL VACUUM TEST LIST OF TABLES AND FIGURES;Figure 4.9 5. 1 5.2 5.3-5.4 5.5 5.6 5.7-5.8 LUNAR SEISMIC PROFILING EXPERIMENT DESIGN VERIFICATION

  13. Thursday, March 15, 2007 POSTER SESSION II: LUNAR METEORITES

    E-Print Network [OSTI]

    Rathbun, Julie A.

    2977, and NWA 3160 [#2109] We discuss the petrography, geochemistry, and pairing relationships. A. Russell S. S. Petrography and Bulk Composition of Miller Range 05035: A New Lunar VLT Gabbro 05035: Petrography and Mineralogy [#2103] Characterization of new lunar meteorite MIL05035 and its

  14. Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics

    E-Print Network [OSTI]

    Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics Sarah A. Shull, Olivier Campaign Logistics by Sarah A. Shull B.S.E. Aerospace Engineering (2001) The University of Michigan) #12;4 Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics by Sarah A. Shull

  15. A quasi-economic role for lunar science

    SciTech Connect (OSTI)

    Jones, E.M.

    1989-01-01

    In broad economic terms, the development of lunar products will begin with a sequence of technology, production, and delivery demonstrations which will have to precede the emergence of markets. Economically viable products will tend to be those for which the sum of production and transport costs are lower for lunar suppliers than for terrestrial suppliers. As long as lunar production costs exceed terrestrial production costs -- as will be the case for most lunar products until such time as lunar development has reached a mature stage -- the most viable industries will be those producing low-tech products for lunar markets. The scale of initial lunar markets will depend on the size of a lunar base and/or its rate of growth. For a given level of public support, maximum base size can be achieved through the conduct, at the base, of a vigorous program of scientific and engineering research making use of as much local production and as many permanently-resident support staff as feasible. 5 refs.

  16. Icy wave-cloud lunar corona and cirrus iridescence

    E-Print Network [OSTI]

    Shaw, Joseph A.

    Icy wave-cloud lunar corona and cirrus iridescence Joseph A. Shaw* and Nathan J. Pust Electrical to determine that iridescence in cirrus and a lunar corona in a thin wave cloud were caused by tiny ice conventional ice crystals. The iridescent cloud was located at the tropopause [1113:6 km above mean sea level

  17. Topography of the Lunar Poles from Radar Interferometry: A

    E-Print Network [OSTI]

    Margot, Jean-Luc

    Topography of the Lunar Poles from Radar Interferometry: A Survey of Cold Trap Locations J. L. Margot,1 * D. B. Campbell,1 R. F. Jurgens,2 M. A. Slade2 Detailed topographic maps of the lunar poles are 1030 and 2550 square kilometers for the north and south poles, respectively. Topographic depressions

  18. Optical photometry of the eclipsing Large Magellanic Cloud supersoft source CAL 87

    E-Print Network [OSTI]

    C. Alcock

    1997-02-13

    We present optical photometry of the eclipsing supersoft source, CAL87. These observations comprise long term data accumulated as a by-product of the MACHO Project, and high speed white light photometry of a single eclipse. We (i) derive an improved ephemeris of To = HJD 2450111.5144(3) + 0.44267714(6)E for the time of minimum light, (ii) find the eclipse structure to be stable over a period of 4 years, and (iii) investigate the colour variation as a function of orbital phase. The resolution afforded by the high speed nature of the white light observations enables us to see new structure in the light curve morphology.

  19. PROBING LUNAR VOLATILES: INITIAL GROUND-BASED RESULTS. A. Crotts , D. Austin

    E-Print Network [OSTI]

    Savin, Daniel Wolf

    of episodic lunar events (moon- quakes, outgassing events, radon release episodes and optical transient lunar that these reported events are likely due to real lunar outgassing (~85% of the time by our estimates), since lunar outgassing might generate TLPs, other ways in which events might interact with the regolith

  20. Thursday, March 15, 2007 POSTER SESSION II: LUNAR MISSIONS AND INSTRUMENTS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    . Seismic Observation by the Seismometer on Board the Penetrator for Lunar Exploration [#1503] The seismic Yue Z. Xie H. Liu J. Ouyang Z. An Introduction of Chinese Lunar Exploration Program [#2082] China has. Vostrukhin A. Lunar Exploration Neutron Detector (LEND) for NASA Lunar Reconnaissance Orbiter [#1648

  1. Absolute properties of the eclipsing binary star IM Persei

    SciTech Connect (OSTI)

    Lacy, Claud H. Sandberg [Physics Department, University of Arkansas, Fayetteville, AR 72701 (United States); Torres, Guillermo [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Fekel, Francis C.; Muterspaugh, Matthew W. [Center of Excellence in Information Systems, Tennessee State University, Nashville, TN 37209 (United States); Southworth, John, E-mail: clacy@uark.edu, E-mail: gtorres@cfa.harvard.edu, E-mail: fekel@evans.tsuniv.edu, E-mail: matthew1@coe.tsuniv.edu, E-mail: astro.js@keele.ac.uk [Astrophysics Group, Keele University, Staffordshire, ST5 5BG (United Kingdom)

    2015-01-01

    IM Per is a detached A7 eccentric eclipsing binary star. We have obtained extensive measurements of the light curve (28,225 differential magnitude observations) and radial velocity curve (81 spectroscopic observations) which allow us to fit orbits and determine the absolute properties of the components very accurately: masses of 1.7831 0.0094 and 1.7741 0.0097 solar masses, and radii of 2.409 0.018 and 2.366 0.017 solar radii. The orbital period is 2.25422694(15) days and the eccentricity is 0.0473(26). A faint third component was detected in the analysis of the light curves, and also directly observed in the spectra. The observed rate of apsidal motion is consistent with theory (U = 151.4 8.4 year). We determine a distance to the system of 566 46 pc.

  2. Screened thermonuclear reactions and predictive stellar evolution of detached double-lined eclipsing binaries

    E-Print Network [OSTI]

    Theodore Liolios; Theocharis Kosmas

    2005-07-06

    The low energy fusion cross sections of charged-particle nuclear reactions (and the respective reaction rates) in stellar plasmas are enhanced due to plasma screening effects. We study the impact of those effects on predictive stellar evolution simulations for detached double-lined eclipsing binaries. We follow the evolution of binary systems (pre-main sequence or main sequence stars) with precisely determined radii and masses from 1.1Mo to 23Mo (from their birth until their present state). The results indicate that all the discrepancies between the screened and unscreened models (in terms of luminosity, stellar radius, and effective temperature) are within the observational uncertainties. Moreover, no nucleosynthetic or compositional variation was found due to screening corrections. Therefore all thermonuclear screening effects on the charged-particle nuclear reactions that occur in the binary stars considered in this work (from their birth until their present state) can be totally disregarded. In other words, all relevant charged-particle nuclear reactions can be safely assumed to take place in a vacuum, thus simplifying and accelerating the simulation processes.

  3. Developing an Adaptive User Interface in Eclipse Alex Leung, Scott Morisson, Matt Wringe and Ying Zou

    E-Print Network [OSTI]

    Zou, Ying

    Zou Department of Electrical and Computer Engineering Queen's University Kingston, Ontario, Canada {2, increasing UI clutter. IDEs, such as Eclipse (i.e., open source Java development environment) [3], often

  4. Thermal Wadis in Support of Lunar Exploration: Concept Development and Utilization

    SciTech Connect (OSTI)

    Matyas, Josef; Wegeng, Robert S.; Burgess, Jeremy M.

    2009-10-12

    Thermal wadis, engineered sources of heat, can be used to extend the life of lunar rovers by keeping them warm during the extreme cold of the lunar night. Thermal wadis can be manufactured by sintering or melting lunar regolith into a solid mass with more than two orders of magnitude higher thermal diffusivities compared to native regolith dust. Small simulant samples were sintered and melted in the electrical furnaces at different temperatures, different heating and cooling rates, various soaking times, under air, or in an argon atmosphere. The samples were analyzed with scanning electron microscopy and energy dispersive spectroscopy, X-ray diffraction, a laser-flash thermal diffusivity system, and the millimeter-wave system. The melting temperature of JSC-1AF simulant was ~50C lower in an Ar atmosphere compared to an air atmosphere. The flow of Ar during sintering and melting resulted in a small mass loss of 0.04 to 0.1 wt% because of the volatization of alkali compounds. In contrast, the samples that were heat-treated under an air atmosphere gained from 0.012 to 0.31 wt% of the total weight. A significantly higher number of cavities were formed inside the samples melted under an argon atmosphere, possibly because of the evolution of oxygen bubbles from iron redox reactions. The calculated emissivity of JSCf-1AF simulant did not change much with temperature, varying between 0.8 and 0.95 at temperatures from 100 to 1200C. The thermal diffusivities of raw regolith that was compressed under a pressure of 9 metric tons ranged from 0.0013 to 00011 in the 27 to 390C temperature range. The thermal diffusivities of sintered and melted JSC-1AF simulant varied from 0.0028 to 0.0072 cm2/s with the maximum thermal diffusivities observed in the samples that were heated up 5C/min from RT to 1150C under Ar or air. These thermal diffusivities are high enough for the rovers to survive the extreme cold of the Moon at the rim of the Shackleton Crater and allow them to operate for months (or years) as opposed to weeks on the lunar surface. Future investigations will be focused on a system that can efficiently construct a thermal wadi from the lunar mare regolith. Solar heating, microwave heating, or electrical resistance melting are considered.

  5. Alignment of ALSEP at Latitudes Off the Lunar Equator

    E-Print Network [OSTI]

    Rathbun, Julie A.

    if ALSEP is deployed at very low sun angles (15 or less) and during or near a lunar equinox. 2 manner as present equatorial deployment. #12;: : I Aa-ospace ~tams Division DEFINITIONS Equinox Summer

  6. Laser Ranging for Gravitational, Lunar, and Planetary Science

    E-Print Network [OSTI]

    Stephen M. Merkowitz; Philip W. Dabney; Jeffrey C. Livas; Jan F. McGarry; Gregory A. Neumann; Thomas W. Zagwodzki

    2007-12-20

    More precise lunar and Martian ranging will enable unprecedented tests of Einstein's theory of General Relativity and well as lunar and planetary science. NASA is currently planning several missions to return to the Moon, and it is natural to consider if precision laser ranging instruments should be included. New advanced retroreflector arrays at carefully chosen landing sites would have an immediate positive impact on lunar and gravitational studies. Laser transponders are currently being developed that may offer an advantage over passive ranging, and could be adapted for use on Mars and other distant objects. Precision ranging capability can also be combined with optical communications for an extremely versatile instrument. In this paper we discuss the science that can be gained by improved lunar and Martian ranging along with several technologies that can be used for this purpose.

  7. Kring/Space Sciences 2006 Lunar Exploration Initiative

    E-Print Network [OSTI]

    Rathbun, Julie A.

    to maintain ready access to shelter in case these types of storms occur Updated 3 April 2006 #12;Kring/Space Sciences 2006 Lunar Exploration Initiative Galactic Cosmic Rays Isotropic field of GCR exist at Earth

  8. Lunar lander propellant production for a multiple site exploration mission

    E-Print Network [OSTI]

    Neubert, Joshua, 1981-

    2004-01-01

    A model has been developed to analyze the benefit of utilizing a processing plant architecture so that a lunar oxygen production demonstration mission can also provide a significant exploration and scientific return. This ...

  9. Phosphorus adsorption and desorption properties of lunar simulants

    E-Print Network [OSTI]

    Sutter, Brad

    1995-01-01

    To reduce resupply costs of a permanently inhabited lunar base, astronauts will grow crops to supply food, regenerate suitable levels of oxygen, remove carbon dioxide and recycle water (transpiration). To obtain efficient crop growth, nutrient...

  10. Integrated modeling and simulation of lunar exploration campaign logistics

    E-Print Network [OSTI]

    Shull, Sarah A. (Sarah Anderson)

    2007-01-01

    As NASA prepares to establish a manned outpost on the lunar surface, it is essential to consider the logistics of both the construction and operation of this outpost. This thesis presents an interplanetary supply chain ...

  11. Heavenly Mathematics: Cultural Astronomy Submitted by Group: 21

    E-Print Network [OSTI]

    Aslaksen, Helmer

    and the Moon. Therefore, there are a few types of eclipses, namely, the Solar eclipse and the lunar eclipse and the Moon's orbit. The 2 paths are at a separation angle of 50 . Hence, if either one of the conditions, we shall look at the sub- groups of the Solar and Lunar eclipse. The Solar eclipse The Solar eclipse

  12. ,"Total Natural Gas Consumption

    U.S. Energy Information Administration (EIA) Indexed Site

    Gas Consumption (billion cubic feet)",,,,,"Natural Gas Energy Intensity (cubic feetsquare foot)" ,"Total ","Space Heating","Water Heating","Cook- ing","Other","Total ","Space...

  13. A 100-year record of North Pacific volcanism in an ice core from Eclipse Icefield, Yukon Territory, Canada

    E-Print Network [OSTI]

    Kurapov, Alexander

    for the development of longer ice core based records of paleovolcanism in the North Pacific rim. INDEX TERMS: 0305A 100-year record of North Pacific volcanism in an ice core from Eclipse Icefield, Yukon Territory Pacific over the last century has been developed using a glaciochemical record from Eclipse Icefield

  14. An Evaluation of Shadow Shielding for Lunar System Waste Heat Rejection

    E-Print Network [OSTI]

    Worn, Cheyn

    2012-07-16

    Shadow shielding is a novel and practical concept for waste heat rejection from lunar surface spacecraft systems. A shadow shield is a light shield that shades the radiator from parasitic thermal radiation emanating from the sun or lunar surface...

  15. Thursday, March 26, 2009 POSTER SESSION II: LUNAR DUST AND TRANSIENT SURFACE PHENOMENA

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Study of the Lunar Time-of-Flight Mass Spectrometer (LTMS): Meteorite Impacts and Outgassing Events, and composition of meteorite impacts and regolith outgassing on the lunar surface. Simulations examine range

  16. The JPL lunar gravity field to spherical harmonic degree 660 from the GRAIL Primary Mission

    E-Print Network [OSTI]

    Konopliv, Alex S.

    The lunar gravity field and topography provide a way to probe the interior structure of the Moon. Prior to the Gravity Recovery and Interior Laboratory (GRAIL) mission, knowledge of the lunar gravity was limited mostly to ...

  17. THE DOUBLE PULSAR ECLIPSES. I. PHENOMENOLOGY AND MULTI-FREQUENCY ANALYSIS

    SciTech Connect (OSTI)

    Breton, R. P. [Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4 (Canada); Kaspi, V. M. [Department of Physics, McGill University, Montreal, QC H3A 2T8 (Canada); McLaughlin, M. A. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); Lyutikov, M. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Kramer, M. [Max Planck Institut fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany); Stairs, I. H. [Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada); Ransom, S. M. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Ferdman, R. D. [University of Manchester, Jodrell Bank Centre for Astrophysics, Alan Turing Building, Manchester, M13 9PL (United Kingdom); Camilo, F. [Columbia University, New York, NY 10027 (United States); Possenti, A., E-mail: breton@astro.utoronto.ca [INAF-Osservatorio Astronomico di Cagliari, Poggio dei Pini, strada 54, I-09012 Capoterra (Italy)

    2012-03-10

    The double pulsar PSR J0737-3039A/B displays short, 30 s eclipses that arise around conjunction when the radio waves emitted by pulsar A are absorbed as they propagate through the magnetosphere of its companion pulsar B. These eclipses offer a unique opportunity to directly probe the magnetospheric structure and the plasma properties of pulsar B. We have performed a comprehensive analysis of the eclipse phenomenology using multi-frequency radio observations obtained with the Green Bank Telescope. We have characterized the periodic flux modulations previously discovered at 820 MHz by McLaughlin et al. and investigated the radio frequency dependence of the duration and depth of the eclipses. Based on their weak radio frequency evolution, we conclude that the plasma in pulsar B's magnetosphere requires a large multiplicity factor ({approx}10{sup 5}). We also found that, as expected, flux modulations are present at all radio frequencies in which eclipses can be detected. Their complex behavior is consistent with the confinement of the absorbing plasma in the dipolar magnetic field of pulsar B as suggested by Lyutikov and Thompson and such a geometric connection explains that the observed periodicity is harmonically related to pulsar B's spin frequency. We observe that the eclipses require a sharp transition region beyond which the plasma density drops off abruptly. Such a region defines a plasmasphere that would be well inside the magnetospheric boundary of an undisturbed pulsar. It is also two times smaller than the expected standoff radius calculated using the balance of the wind pressure from pulsar A and the nominally estimated magnetic pressure of pulsar B.

  18. LOW-MASS ECLIPSING BINARIES IN THE INITIAL KEPLER DATA RELEASE

    SciTech Connect (OSTI)

    Coughlin, J. L.; Harrison, T. E.; Ule, N.; Lopez-Morales, M.; Hoffman, D. I.

    2011-03-15

    We identify 231 objects in the newly released Cycle 0 data set from the Kepler Mission as double-eclipse, detached eclipsing binary systems with T{sub eff} < 5500 K and orbital periods shorter than {approx}32 days. We model each light curve using the JKTEBOP code with a genetic algorithm to obtain precise values for each system. We identify 95 new systems with both components below 1.0 M{sub sun} and eclipses of at least 0.1 mag, suitable for ground-based follow-up. Of these, 14 have periods less than 1.0 day, 52 have periods between 1.0 and 10.0 days, and 29 have periods greater than 10.0 days. This new sample of main-sequence, low-mass, double-eclipse, detached eclipsing binary candidates more than doubles the number of previously known systems and extends the sample into the completely heretofore unexplored P > 10.0 day period regime. We find preliminary evidence from these systems that the radii of low-mass stars in binary systems decrease with period. This supports the theory that binary spin-up is the primary cause of inflated radii in low-mass binary systems, although a full analysis of each system with radial-velocity and multi-color light curves is needed to fully explore this hypothesis. Also, we present seven new transiting planet candidates that do not appear among the list of 706 candidates recently released by the Kepler team, or in the Kepler False Positive Catalog, along with several other new and interesting systems. We also present novel techniques for the identification, period analysis, and modeling of eclipsing binaries.

  19. PLANETARY CONSTRUCTION ZONES IN OCCULTATION: DISCOVERY OF AN EXTRASOLAR RING SYSTEM TRANSITING A YOUNG SUN-LIKE STAR AND FUTURE PROSPECTS FOR DETECTING ECLIPSES BY CIRCUMSECONDARY AND CIRCUMPLANETARY DISKS

    SciTech Connect (OSTI)

    Mamajek, Eric E.; Quillen, Alice C.; Pecaut, Mark J.; Moolekamp, Fred; Scott, Erin L.; Kenworthy, Matthew A.; Cameron, Andrew Collier; Parley, Neil R.

    2012-03-15

    The large relative sizes of circumstellar and circumplanetary disks imply that they might be seen in eclipse in stellar light curves. We estimate that a survey of {approx}10{sup 4} young ({approx}10 million year old) post-accretion pre-main-sequence stars monitored for {approx}10 years should yield at least a few deep eclipses from circumplanetary disks and disks surrounding low-mass companion stars. We present photometric and spectroscopic data for a pre-main-sequence K5 star (1SWASP J140747.93-394542.6 = ASAS J140748-3945.7), a newly discovered {approx}0.9 M{sub Sun} member of the {approx}16 Myr old Upper Centaurus-Lupus subgroup of Sco-Cen at a kinematic distance of 128 {+-} 13 pc. This star exhibited a remarkably long, deep, and complex eclipse event centered on 2007 April 29 (as discovered in Super Wide Angle Search for Planets (SuperWASP) photometry, and with portions of the dimming confirmed by All Sky Automated Survey (ASAS) data). At least five multi-day dimming events of >0.5 mag are identified, with a >3.3 mag deep eclipse bracketed by two pairs of {approx}1 mag eclipses symmetrically occurring {+-}12 days and {+-}26 days before and after. Hence, significant dimming of the star was taking place on and off over at least a {approx}54 day period in 2007, and a strong >1 mag dimming event occurring over a {approx}12 day span. We place a firm lower limit on the period of 850 days (i.e., the orbital radius of the eclipser must be >1.7 AU and orbital velocity must be <22 km s{sup -1}). The shape of the light curve is similar to the lopsided eclipses of the Be star EE Cep. We suspect that this new star is being eclipsed by a low-mass object orbited by a dense inner disk, further girded by at least three dusty rings of optical depths near unity. Between these rings are at least two annuli of near-zero optical depth (i.e., gaps), possibly cleared out by planets or moons, depending on the nature of the secondary. For possible periods in the range 2.33-200 yr, the estimated total ring mass is {approx}8-0.4 M{sub Moon} (if the rings have optical opacity similar to Saturn's rings), and the edge of the outermost detected ring has orbital radius {approx}0.4-0.09 AU. In the new era of time-domain astronomy opened by surveys like SuperWASP, ASAS, etc., and soon to be revolutionized by Large Synoptic Survey Telescope, discovering and characterizing eclipses by circumplanetary and circumsecondary disks will provide us with observational constraints on the conditions that spawn satellite systems around gas giant planets and planetary systems around stars.

  20. PRINT ONLY: LUNAR SAMPLES AND MODELING Hsu W. Zhang A. Guan Y. Ushikubo T. Bartoschewitz R.

    E-Print Network [OSTI]

    Rathbun, Julie A.

    . Galimov E. M. The Estimation of Helium-3 Probable Reserves in Lunar Regolith [#2175] This abstractPRINT ONLY: LUNAR SAMPLES AND MODELING Hsu W. Zhang A. Guan Y. Ushikubo T. Bartoschewitz R. Sayh Al, mineralogy, and trace element geochemistry of the lunar meteorite SaU 300. Opanasenko A. N. Shkuratov Yu. G

  1. www.sea.co.uk a Cohort plc company L-DAP Lunar Dust Analysis Package

    E-Print Network [OSTI]

    Anand, Mahesh

    www.sea.co.uk a Cohort plc company L-DAP Lunar Dust Analysis Package Study Overview ESTEC Contract.sea.co.uk a Cohort plc company Dust Problems.. "I think probably the most aggravating, restricting facets of lunar #12;www.sea.co.uk a Cohort plc company Lunar South Pole ... L-DAP Overview 28th Oct 2011 South Pole

  2. Microsymposium 34, MS065, 2001 PERMANENTLY SHADOWED AREAS AT THE LUNAR POLES. V. V. Shevchenko1

    E-Print Network [OSTI]

    Shevchenko, Vladislav

    Microsymposium 34, MS065, 2001 PERMANENTLY SHADOWED AREAS AT THE LUNAR POLES. V. V. Shevchenko1 , E a maximum of 1,95° above the horizon at the lunar poles. Therefore topographic depressions near the lunar poles may contain water ice deposits. We have used the Morphological catalogue of the craters

  3. Sensor systems for the Altair Lunar Lander:

    SciTech Connect (OSTI)

    Mariella, R

    2009-12-22

    The Altair Lunar Lander will enable astronauts to learn to live and work on the moon for extended periods of time, providing the experience needed to expand human exploration farther into the solar system. My overriding recommendation: Use independent and complementary [sometimes referred to as 'orthogonal'] techniques to disambiguate confounding/interfering signals. E.g.: a mass spectrometer ['MS'], which currently serves as a Majority Constituent Analyzer ['MCA'] can be very valuable in detecting the presence of a gaseous specie, so long as it falls on a mass-to-charge ratio ['m/z'] that is not already occupied by a majority constituent of cabin air. Consider the toxic gas, CO. Both N{sub 2} and CO have parent peaks of m/z = 28, and CO{sub 2} has a fragment peak at m/z = 28 [and at 16 and 12], so the N{sub 2} and CO{sub 2} m/z=28 signals could mask low, but potentially-dangerous levels of CO. However there are numerous surface-sensitive CO detectors, as well as tunable-diode-laser-based CO sensors that could provide independent monitoring of CO. Also, by appending a gas chromatograph ['GC'] as the front-end sample processer, prior to the inlet of the MS, one can rely upon the GC to separate CO from N{sub 2} and CO{sub 2}, providing the crew with another CO monitor. If the Altair Lunar Lander is able to include a Raman-based MCA for N{sub 2}, O{sub 2}, H{sub 2}O, and CO{sub 2}, then each type of MCA would have cross-references, providing more confidence in the ongoing performance of each technique, and decreasing the risk that one instrument might fail to perform properly, without being noticed. See, also Dr. Pete Snyder's work, which states 'An orthogonal technologies sensor system appears to be attractive for a high confidence detection of presence and temporal characterization of bioaerosols.' Another recommendation: Use data fusion for event detection to decrease uncertainty: tie together the outputs from multiple sensing modalities - eNose, solid-state sensors, GC-IMS, GC-MS - via nonlinear algorithms, such as an 'artificial neural net.' MA Ryan at the JPL and Henry Abarbanel at UCSD are possible candidates to implement such an approach.

  4. Acoustic-gravity waves during solar eclipses: detection and characterization using wavelet

    E-Print Network [OSTI]

    Roux, Stephane

    Acoustic-gravity waves during solar eclipses: detection and characterization using wavelet) and to detect and analyze the propagation of the generated acoustic-gravity waves (AGW). Second, injecting wave of the propagation of 2 #12;the waves. This enables us to dierentiate acoustic-gravity waves from others wave- like

  5. SECONDARY ECLIPSE PHOTOMETRY OF THE EXOPLANET WASP-5b WITH WARM SPITZER

    E-Print Network [OSTI]

    Baskin, Nathaniel J.

    We present secondary eclipse photometry of the extrasolar planet WASP-5b taken in the 3.6 and 4.5 ?m bands with the Spitzer Space Telescope's Infrared Array Camera as part of the extended warm mission. By estimating the ...

  6. Light curve modeling of eclipsing binaries towards the constellation of Carina

    E-Print Network [OSTI]

    Dey, Aniruddha; Kumar, Subhash; Bhardwaj, Hrishabh; Bhattacharya, Barnmoy; Richa,; Sharma, Angad; Chauhan, Akshyata; Tiwari, Neha; Kaur, Sharanjit; Kumar, Suman; Abhishek,

    2015-01-01

    We present a detailed V-band photometric light curve modeling of 30 eclipsing binaries using the data from Pietrukowicz et al. (2009) collected with the European Southern Observatory Very Large Telescope (ESO VLT) of diameter 8-m. The light curve of these 30 eclipsing binaries were selected out of 148 of them available in the database on the basis of complete phase coverage, regular and smooth phased light curve shapes. Eclipsing binaries play pivotal role in the direct measurement of astronomical distances more accurately simply from their geometry of light curves. The accurate value of Hubble constant (H0) which measures the rate of expansion of the Universe heavily relies on extragalactic distance scale measurements. Classification of the selected binary stars in the sample were done, preliminarily on the basis of Fourier parameters in the a2-a4 plane and final classification was obtained from the Roche lobe geometry. Out of these 30 eclipsing binaries, only one was found to be detached binary system while...

  7. EXPECTED LARGE SYNOPTIC SURVEY TELESCOPE (LSST) YIELD OF ECLIPSING BINARY STARS

    SciTech Connect (OSTI)

    Prsa, Andrej; Pepper, Joshua; Stassun, Keivan G.

    2011-08-15

    In this paper, we estimate the Large Synoptic Survey Telescope (LSST) yield of eclipsing binary stars, which will survey {approx}20,000 deg{sup 2} of the southern sky during a period of 10 years in six photometric passbands to r {approx} 24.5. We generate a set of 10,000 eclipsing binary light curves sampled to the LSST time cadence across the whole sky, with added noise as a function of apparent magnitude. This set is passed to the analysis-of-variance period finder to assess the recoverability rate for the periods, and the successfully phased light curves are passed to the artificial-intelligence-based pipeline ebai to assess the recoverability rate in terms of the eclipsing binaries' physical and geometric parameters. We find that, out of {approx}24 million eclipsing binaries observed by LSST with a signal-to-noise ratio >10 in mission lifetime, {approx}28% or 6.7 million can be fully characterized by the pipeline. Of those, {approx}25% or 1.7 million will be double-lined binaries, a true treasure trove for stellar astrophysics.

  8. CSCI 161: Introduction to Programming I Lab 1b: Hello, World (Eclipse, Java)

    E-Print Network [OSTI]

    Hardy, Christopher R.

    CSCI 161: Introduction to Programming I Lab 1b: Hello, World (Eclipse, Java) Goals - to learn how to compile and execute a Java program Overview This activity will introduce you to the Java programming language. You will type in the Java program shown, compile it, and execute it. You will submit your project

  9. Moon's Radiation Environment and Expected Performance of Solar Cells during Future Lunar Missions

    E-Print Network [OSTI]

    T. E Girish; S Aranya

    2010-12-03

    Several lunar missions are planned ahead and there is an increasing demand for efficient photovoltaic power generation in the moon. The knowledge of solar cell operation in the lunar surface obtained during early seventies need to be updated considering current views on solar variability and emerging space solar cell technologies. In this paper some aspects of the solar cell performance expected under variable lunar radiation environment during future space missions to moon are addressed. We have calculated relative power expected from different types of solar cells under extreme solar proton irradiation conditions and high lunar daytime temperature. It is also estimated that 2-3 % of annual solar cell degradation is most probable during the future lunar missions. We have also discussed photovoltaic power generation in long term lunar bases emphasizing technological needs such as sunlight concentration, solar cell cooling and magnetic shielding of radiation for improving the efficiency of solar cells in the lunar environment.

  10. SU-E-T-344: Validation and Clinical Experience of Eclipse Electron Monte Carlo Algorithm (EMC)

    SciTech Connect (OSTI)

    Pokharel, S [21st Century Oncology, Fort Myers, FL (United States); Rana, S [Procure Proton Therapy Center, Oklahoma City, OK (United States)

    2014-06-01

    Purpose: The purpose of this study is to validate Eclipse Electron Monte Carlo (Algorithm for routine clinical uses. Methods: The PTW inhomogeneity phantom (T40037) with different combination of heterogeneous slabs has been CT-scanned with Philips Brilliance 16 slice scanner. The phantom contains blocks of Rando Alderson materials mimicking lung, Polystyrene (Tissue), PTFE (Bone) and PMAA. The phantom has 30302.5 cm base plate with 2cm recesses to insert inhomogeneity. The detector systems used in this study are diode, tlds and Gafchromic EBT2 films. The diode and tlds were included in CT scans. The CT sets are transferred to Eclipse treatment planning system. Several plans have been created with Eclipse Monte Carlo (EMC) algorithm 11.0.21. Measurements have been carried out in Varian TrueBeam machine for energy from 622mev. Results: The measured and calculated doses agreed very well for tissue like media. The agreement was reasonably okay for the presence of lung inhomogeneity. The point dose agreement was within 3.5% and Gamma passing rate at 3%/3mm was greater than 93% except for 6Mev(85%). The disagreement can reach as high as 10% in the presence of bone inhomogeneity. This is due to eclipse reporting dose to the medium as opposed to the dose to the water as in conventional calculation engines. Conclusion: Care must be taken when using Varian Eclipse EMC algorithm for dose calculation for routine clinical uses. The algorithm dose not report dose to water in which most of the clinical experiences are based on rather it just reports dose to medium directly. In the presence of inhomogeneity such as bone, the dose discrepancy can be as high as 10% or even more depending on the location of normalization point or volume. As Radiation oncology as an empirical science, care must be taken before using EMC reported monitor units for clinical uses.

  11. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings...

  12. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings*...

  13. ,"Total Fuel Oil Expenditures

    U.S. Energy Information Administration (EIA) Indexed Site

    . Fuel Oil Expenditures by Census Region for Non-Mall Buildings, 2003" ,"Total Fuel Oil Expenditures (million dollars)",,,,"Fuel Oil Expenditures (dollars)" ,,,,,"per...

  14. ,"Total Fuel Oil Consumption

    U.S. Energy Information Administration (EIA) Indexed Site

    0. Fuel Oil Consumption (gallons) and Energy Intensities by End Use for Non-Mall Buildings, 2003" ,"Total Fuel Oil Consumption (million gallons)",,,,,"Fuel Oil Energy Intensity...

  15. ,"Total Fuel Oil Expenditures

    U.S. Energy Information Administration (EIA) Indexed Site

    4. Fuel Oil Expenditures by Census Region, 1999" ,"Total Fuel Oil Expenditures (million dollars)",,,,"Fuel Oil Expenditures (dollars)" ,,,,,"per Gallon",,,,"per Square Foot"...

  16. ,"Total Fuel Oil Expenditures

    U.S. Energy Information Administration (EIA) Indexed Site

    A. Fuel Oil Expenditures by Census Region for All Buildings, 2003" ,"Total Fuel Oil Expenditures (million dollars)",,,,"Fuel Oil Expenditures (dollars)" ,,,,,"per Gallon",,,,"per...

  17. ,"Total Fuel Oil Consumption

    U.S. Energy Information Administration (EIA) Indexed Site

    A. Fuel Oil Consumption (gallons) and Energy Intensities by End Use for All Buildings, 2003" ,"Total Fuel Oil Consumption (million gallons)",,,,,"Fuel Oil Energy Intensity...

  18. Lunar Gruithuisen and Mairan domes: Rheology and mode of emplacement

    E-Print Network [OSTI]

    Head III, James William

    Science Department, Lancaster University, Lancaster, United Kingdom James W. Head Department of Geological is very low, $7 105 m/s, and the Reynolds number of the motion is $2 108 , implying a completely. Head, Lunar Gruithuisen and Mairan domes: Rheology and mode of emplacement, J. Geophys. Res., 108(E2

  19. Next Generation Rover for Lunar Exploration Dan A. Harrison

    E-Print Network [OSTI]

    Rathbun, Julie A.

    .............................................................12 1. INTRODUCTION A bright light appears in the starry blackness above the stark lunar landscape truck, known as Chariot shown in Figure 4. The Chariot is a new multipurpose, reconfigurable, modular truck is named Chariot because of the chariot-like "look" of the standing crew members driving

  20. Lunar Exploration Objectives Version 1, released December 2006

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Lunar Exploration Objectives Version 1, released December 2006 Astronomy and Astrophysics Page 1 of 2 Exploration Preparation Scientific Knowledge Human Civilization Economic Expansion Global, and seismic noise are all absent in deep space. X Astronomy & Astrophysics mA3 Detect gravitational waves

  1. NASA/CR2004208938 Lunar Receiving Laboratory Project History

    E-Print Network [OSTI]

    Rathbun, Julie A.

    NASA/CR2004208938 Lunar Receiving Laboratory Project History Susan Mangus Muskingum College New Concord, Ohio William Larsen Johnson Space Center Houston, Texas June 2004 #12;THE NASA STI PROGRAM OFFICE . . . IN PROFILE Since its founding, NASA has been dedicated to the advancement of aeronautics and space science

  2. NATIONAL AERONAUTlcr ANn SPACE ADMINISTRATION Apollo Lunar Surface

    E-Print Network [OSTI]

    Rathbun, Julie A.

    EXPERIMENT SUPRATHERMAL ION DETECTOR COLD-CATHODE ION GAGE SOLAR WIND SPECTROMETER CHARGED and '" / Analysis (Off-Line) , ........!\\ ~,apes I L 7 \\ ~ High-Speed Data ... Comma,nds / L _ )( /' Wide ANGULAR RATE IN ELLIPTICAL ORBIT AROUND EARTH 6.5 LUNAR LATITUDE DUE TO: INCLINATION OF MOON'S ROTATION

  3. Thursday, March 15, 2007 POSTER SESSION II: LUNAR REMOTE SENSING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Thursday, March 15, 2007 POSTER SESSION II: LUNAR REMOTE SENSING 6:30 p.m. Fitness Center Mc-Cittert) Planetary Remote Sensing Neutron Count Rate Maps [#2408] This paper evaluates Jansson Van-Cittert's (JVC) image restoration transform for possible application to neutron maps for planetary remote sensing

  4. A Testbed for Evaluating Lunar Habitat Autonomy Architectures

    E-Print Network [OSTI]

    Kortenkamp, David

    and perturbations on the system; and 3) mitigate software and hardware integration risks. The testbed will provide systems composing the lunar outpost. This automation will be at #12;a level of complexity that has not yet been demonstrated in space systems. The number of interacting systems, the incremental build

  5. The data mining: An analysis of 20 eclipsing binary light-curves observed by the INTEGRAL/OMC

    E-Print Network [OSTI]

    P. Zasche

    2008-11-11

    Twenty eclipsing binaries were selected for an analysis from a huge database of observations made by the INTEGRAL/OMC camera. The photometric data were processed and analyzed, resulting in a first light-curve study of these neglected eclipsing binaries. Most of the selected systems are the detached ones. The system ET Vel was discovered to be an eccentric one. Due to missing spectroscopic study of these stars, further detailed analyses are still needed.

  6. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  7. Total Synthesis of (?)-Himandrine

    E-Print Network [OSTI]

    Movassaghi, Mohammad

    We describe the first total synthesis of (?)-himandrine, a member of the class II galbulimima alkaloids. Noteworthy features of this chemistry include a diastereoselective Diels?Alder reaction in the rapid synthesis of the ...

  8. Eclipsing binary systems as tests of low-mass stellar evolution theory

    E-Print Network [OSTI]

    Feiden, Gregory A

    2015-01-01

    Stellar fundamental properties (masses, radii, effective temperatures) can be extracted from observations of eclipsing binary systems with remarkable precision, often better than 2%. Such precise measurements afford us the opportunity to confront the validity of basic predictions of stellar evolution theory, such as the mass-radius relationship. A brief historical overview of confrontations between stellar models and data from eclipsing binaries is given, highlighting key results and physical insight that have led directly to our present understanding. The current paradigm that standard stellar evolution theory is insufficient to describe the most basic relation, that of a star's mass to its radius, along the main sequence is then described. Departures of theoretical expectations from empirical data, however, provide a rich opportunity to explore various physical solutions, improving our understanding of important stellar astrophysical processes.

  9. The History of the Mysterious Eclipses of KH 15D: Asiago Observatory, 1967-1982

    E-Print Network [OSTI]

    John A. Johnson; Joshua N. Winn

    2003-12-23

    We are gathering archival observations to determine the photometric history of the unique and unexplained eclipses of the pre-main-sequence star KH 15D. Here we present a light curve from 1967-1982, based on photographic plates from Asiago Observatory. During this time, the system alternated periodically between bright and faint states, as observed today. However, the bright state was 0.9 mag brighter than the modern value, and the fractional variation between bright and faint states (Delta I = 0.7 mag) was smaller than observed today (3.5 mag). A possible explanation for these findings is that the system contains a second star that was previously blended with the eclipsing star, but is now completely obscured.

  10. CD Tau: a detached eclipsing binary with a solar-mass companion

    E-Print Network [OSTI]

    Ignasi Ribas; Carme Jordi; Jordi Torra

    1999-05-10

    We present a detailed analysis of the detached eclipsing binary CD Tau. A large variety of observational data, in form of IR photometry, CORAVEL radial velocity observations and high-resolution spectra, are combined with the published light curves to derive accurate absolute dimensions and effective temperature of the components, as well as the metal abundance of the system. We obtain: MA=1.442(16) Mo, RA=1.798(17) Ro, TeffA=6200(50) K, MB=1.368(16) Msun, RB=1.584(20) Run and TeffB=6200(50) K. The metal content of the system is determined to be [Fe/H]=+0.08(15) dex. In addition, the eclipsing binary has a K-type close visual companion at about 10-arcsec separation, which is shown to be physically linked, thus sharing a common origin. The effective temperature of the visual companion (Teff=5250(200) K) is determined from synthetic spectrum fitting, and its luminosity (log L/Lo=-0.27(6)), and therefore its radius (R=0.89(9) Ro), are obtained from comparison with the apparent magnitude of the eclipsing pair. The observed fundamental properties of the eclipsing components are compared with the predictions of evolutionary models, and we obtain good agreement for an age of 2.6 Gyr and a chemical composition of Z=0.026 and Y=0.26. Furthermore, we test the evolutionary models for solar-mass stars and we conclude that the physical properties of the visual companion are very accurately described by the same isochrone that fits the more massive components.

  11. Search for stable Strange Quark Matter in lunar soil

    E-Print Network [OSTI]

    Ke Han; Jeffrey Ashenfelter; Alexei Chikanian; William Emmet; Evan Finch; Andreas Heinz; Jes Madsen; Richard Majka; Benjamin Monreal; Jack Sandweiss

    2009-03-29

    We report results from a search for strangelets (small chunks of Strange Quark Matter) in lunar soil using the Yale WNSL accelerator as a mass spectrometer. We have searched over a range in mass from A=42 to A=70 amu for nuclear charges 5, 6, 8, 9, and 11. No strangelets were found in the experiment. For strangelets with nuclear charge 8, a concentration in lunar soil higher than $10^{-16}$ is excluded at the 95% confidence level. The implied limit on the strangelet flux in cosmic rays is the most sensitive to date for the covered range and is relevant to both recent theoretical flux predictions and a strangelet candidate event found by the AMS-01 experiment.

  12. NASA TECHNICAL NOTE NASA TN D----LUNAR LANDING AND

    E-Print Network [OSTI]

    Rathbun, Julie A.

    , Virginia 22151 - Price $1.00 i #12;LUNAR LANDING AND SmTE SEIXCTION STUDY By James L. Lewis and Charles D t with the use of mini" fuel, under abnormal lighting conditions, and over unfamiliar t e r r a i n void , starting at 1000 f e e t altitude 3. Study trajectory shape as a function of brightness level. A Marine UH

  13. CRaTER: The Cosmic Ray Telescope for the Effects of Radiation Experiment on the Lunar Reconnaissance Orbiter Mission

    E-Print Network [OSTI]

    Spence, H. E.

    The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) on the Lunar Reconnaissance Orbiter (LRO) characterizes the radiation environment to be experienced by humans during future lunar missions. CRaTER measures the ...

  14. TOTAL ANNUAL Rent / Mortgage $

    E-Print Network [OSTI]

    Snider, Barry B.

    etc.) $ Child Care Expenses $ Educational Loans taken out in parent's name $ Other (itemize below): $ $ RESOURCES TOTAL ANNUAL AMOUNT Parent 1 Wages $ Parent 2 Wages $ Interest and/or Dividend Income $ Net Income $ Contributions to tax deferred plans(401K) $ Non Educational Veterans' Benefits $ Unemployment Compensation

  15. Total Sustainability Humber College

    E-Print Network [OSTI]

    Thompson, Michael

    1 Total Sustainability Management Humber College November, 2012 SUSTAINABILITY SYMPOSIUM Green An Impending Global Disaster #12;3 Sustainability is NOT Climate Remediation #12;Our Premises "We cannot, you cannot improve it" (Lord Kelvin) "First rule of sustainability is to align with natural forces

  16. Reference reactor module for NASA's lunar surface fission power system

    SciTech Connect (OSTI)

    Poston, David I; Kapernick, Richard J; Dixon, David D; Werner, James; Qualls, Louis; Radel, Ross

    2009-01-01

    Surface fission power systems on the Moon and Mars may provide the first US application of fission reactor technology in space since 1965. The Affordable Fission Surface Power System (AFSPS) study was completed by NASA/DOE to determine the cost of a modest performance, low-technical risk surface power system. The AFSPS concept is now being further developed within the Fission Surface Power (FSP) Project, which is a near-term technology program to demonstrate system-level TRL-6 by 2013. This paper describes the reference FSP reactor module concept, which is designed to provide a net power of 40 kWe for 8 years on the lunar surface; note, the system has been designed with technologies that are fully compatible with a Martian surface application. The reactor concept uses stainless-steel based. UO{sub 2}-fueled, pumped-NaK fission reactor coupled to free-piston Stirling converters. The reactor shielding approach utilizes both in-situ and launched shielding to keep the dose to astronauts much lower than the natural background radiation on the lunar surface. The ultimate goal of this work is to provide a 'workhorse' power system that NASA can utilize in near-term and future Lunar and Martian mission architectures, with the eventual capability to evolve to very high power, low mass systems, for either surface, deep space, and/or orbital missions.

  17. X-ray Eclipse Diagnosis of the Evolving Mass Loss in the Recurrent Nova U Scorpii 2010

    E-Print Network [OSTI]

    Takei, D; Tsujimoto, M; Ness, J -U; Osborne, J P; Starrfield, S; Kitamoto, S

    2013-01-01

    We report the Suzaku detection of the earliest X-ray eclipse seen in the recurrent nova U Scorpii 2010. A target-of-opportunity observation 15 days after the outburst found a 27+/-5% dimming in the 0.2-1.0 keV energy band at the predicted center of an eclipse. In comparison with the X-ray eclipse depths seen at two later epochs by XMM-Newton, the source region shrank by about 10-20% between days 15 and 35 after the outburst. The X-ray eclipses appear to be deeper than or similar to contemporaneous optical eclipses, suggesting the X-ray and optical source region extents are comparable on day 15. We raise the possibility of the energy dependency in the photon escape regions, and that this would be a result of the supersoft X-ray opacity being higher than the Thomson scattering optical opacity at the photosphere due to bound-free transitions in abundant metals that are not fully ionized. Assuming a spherically symmetric explosion model, we constrain the mass-loss rate as a function of time. For a ratio of actual...

  18. X-RAY ECLIPSE DIAGNOSIS OF THE EVOLVING MASS LOSS IN THE RECURRENT NOVA U SCORPII 2010

    SciTech Connect (OSTI)

    Takei, D.; Drake, J. J. [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Tsujimoto, M. [Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Ness, J.-U. [European Space Agency, XMM-Newton Observatory SOC, SRE-OAX, Apartado 78, E-28691 Villanueva de la Canada, Madrid (Spain); Osborne, J. P. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Starrfield, S. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States); Kitamoto, S., E-mail: dtakei@head.cfa.harvard.edu [Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan)

    2013-05-20

    We report the Suzaku detection of the earliest X-ray eclipse seen in the recurrent nova U Scorpii 2010. A target-of-opportunity observation 15 days after the outburst found a 27% {+-} 5% dimming in the 0.2-1.0 keV energy band at the predicted center of an eclipse. In comparison with the X-ray eclipse depths seen at two later epochs by XMM-Newton, the source region shrank by about 10%-20% between days 15 and 35 after the outburst. The X-ray eclipses appear to be deeper than or similar to contemporaneous optical eclipses, suggesting the X-ray and optical source region extents are comparable on day 15. We raise the possibility of the energy dependency in the photon escape regions, and that this would be a result of the supersoft X-ray opacity being higher than the Thomson scattering opacity at the photosphere due to bound-free transitions in abundant metals that are not fully ionized. Assuming a spherically symmetric model, we constrain the mass-loss rate as a function of time. For a ratio of actual to Thomson opacity of 10-100 in supersoft X-rays, we find an ejecta mass of about 10{sup -7}-10{sup -6} M{sub Sun }.

  19. Solar-wind protons and heavy ions sputtering of lunar surface materials A.F. Barghouty a,

    E-Print Network [OSTI]

    Solar-wind protons and heavy ions sputtering of lunar surface materials A.F. Barghouty a, , F Available online 21 December 2010 Keywords: Solar wind sputtering Lunar regolith KREEP soil Potential a c t Lunar surface materials are exposed to $1 keV/amu solar-wind protons and heavy ions on almost

  20. Capability of the penetrator seismometer system for lunar seismic event observation

    E-Print Network [OSTI]

    Takeuchi, Nozomu

    Capability of the penetrator seismometer system for lunar seismic event observation R. Yamada a of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara Penetrator Moonquake Lunar exploration Planetary seismology a b s t r a c t We developed a seismometer system

  1. Re-examining the main asteroid belt as the primary source of ancient lunar craters

    E-Print Network [OSTI]

    Richardson Jr., James E.

    Re-examining the main asteroid belt as the primary source of ancient lunar craters David A. Minton craters on the ancient lunar highlands were derived from the main asteroid belt in such a way, postulates that a destabilized contiguous inner extension of the main asteroid belt produced a bombardment

  2. Lunar interior properties from the GRAIL mission James G. Williams1

    E-Print Network [OSTI]

    Nimmo, Francis

    Lunar interior properties from the GRAIL mission James G. Williams1 , Alexander S. Konopliv1 , Dale Recovery and Interior Laboratory (GRAIL) mission has sampled lunar gravity with unprecedented accuracy GRAIL Primary Mission data at the Jet Propulsion Laboratory and the Goddard Space Flight Center. The two

  3. Thursday, March 26, 2009 POSTER SESSION II: SOURCES AND ERUPTION OF LUNAR BASALTS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Ar-39 Ar Ages and Chemical Composition for Lunar Mare Basalts: NWA 4734 and NWA 4898 [#1045] 40 Ar-39 Ar ages are reported for lunar mare basalts NWA 4734 and NWA 4898. The age obtained for NWA 4734 is 2

  4. The Lunar L1 Gateway: Portal to the Stars and Beyond

    E-Print Network [OSTI]

    Ross, Shane

    1 The Lunar L1 Gateway: Portal to the Stars and Beyond Martin W. Lo Navigation and Mission Design-30, 2001 #12;2 The Lunar L1 Gateway: Portal to the Stars and Beyond Martin Lo1 , Shane Ross2 Abstract Our Solar System is interconnected by a vast system of tunnels winding around the Sun generated

  5. Kinetic And Potential Sputtering Of Lunar Regolith: The Contribution Of The Heavy (Minority) Solar Wind Ions

    E-Print Network [OSTI]

    Wind Ions F.W. Meyera1 , P.R. Harrisa2 , H.M. Meyer IIIb , H. Hijazia , A.F. Barghoutyc a Physics, Huntsville, AL 35812, USA Abstract. In this paper the sputtering of lunar regolith by protons and solar wind of JSC-1A AGGL lunar regolith simulant at solar wind velocities, and TRIM simulations of kinetic

  6. Developing the global exploration roadmap: An example using the humans to the lunar surface theme

    E-Print Network [OSTI]

    Developing the global exploration roadmap: An example using the humans to the lunar surface theme C: Space exploration Lunar exploration Global exploration roadmap Test bed a b s t r a c t The development of the Global Exploration Roadmap (GER) by 12 space agencies participating in the International Space

  7. Permanent shadow in simple craters near the lunar poles D. Ben J. Bussey,1

    E-Print Network [OSTI]

    Spudis, Paul D.

    Permanent shadow in simple craters near the lunar poles D. Ben J. Bussey,1 Paul G. Lucey,1 Donovan, 7500 km2 and 6500 km2 , for the north and south pole respectively. These values were obtained, to investigate the size and latitudinal extent of permanently shadowed regions near the lunar poles. Craters

  8. The X-ray eclipse of OY Car resolved with XMM-Newton: X-ray emission from the polar regions of the white dwarf

    E-Print Network [OSTI]

    Peter J. Wheatley; Richard G. West

    2003-07-24

    We present the XMM-Newton X-ray eclipse lightcurve of the dwarf nova OY Car. The eclipse ingress and egress are well resolved for the first time in any dwarf nova placing strong constraints on the size and location of the X-ray emitting region. We find good fits to a simple linear eclipse model, giving ingress/egress durations of 30+/-3 sec. Remarkably this is shorter than the ingress/egress duration of the sharp eclipse in the optical as measured by Wood et al. (1989) and ascribed to the white dwarf (43+/-2 sec). We also find that the X-ray eclipse is narrower than the optical eclipse by 14+/-2 sec, which is precisely the difference required to align the second and third contact points of the X-ray and optical eclipses. We discuss these results and conclude that X-ray emission in OY Car most likely arises from the polar regions of the white dwarf. Our data were originally reported by Ramsay et al (2001), but they did not make a quantitative measurement of eclipse parameters. We have also corrected important timing anomalies present in the data available at that time.

  9. Sur l'accord des deux dernieres eclipses du soleil et de la lune avec mes tables, pour trouver les vrais momens des pleni-lunes et novi-lunes

    E-Print Network [OSTI]

    Osler, Thomas

    August 8 and 9. In the first section Euler discusses his accurate prediction for the solar eclipse for the solar eclipse on July 25, 1748 based on observation. He points out that his time predictions with the observed times, as seen in the table below: Solar Eclipse July 25, 1748 Euler's Prediction Observation

  10. A search for planetary eclipses of white dwarfs in the Pan-STARRS1 medium-deep fields

    SciTech Connect (OSTI)

    Fulton, B. J.; Tonry, J. L.; Flewelling, H.; Burgett, W. S.; Chambers, K. C.; Hodapp, K. W.; Huber, M. E.; Kaiser, N.; Wainscoat, R. J.; Waters, C.

    2014-12-01

    We present a search for eclipses of ?1700 white dwarfs (WDs) in the Pan-STARRS1 medium-deep fields. Candidate eclipse events are selected by identifying low outliers in over 4.3 million light curve measurements. We find no short-duration eclipses consistent with being caused by a planetary size companion. This large data set enables us to place strong constraints on the close-in planet occurrence rates around WDs for planets as small as 2 R {sub ?}. Our results indicate that gas giant planets orbiting just outside the Roche limit are rare, occurring around less than 0.5% of WDs. Habitable-zone super-Earths and hot super-Earths are less abundant than similar classes of planets around main-sequence stars. These constraints provide important insight into the ultimate fate of the large population of exoplanets orbiting main-sequence stars.

  11. IPHAS J062746.41+014811.3: A DEEPLY ECLIPSING INTERMEDIATE POLAR

    SciTech Connect (OSTI)

    Aungwerojwit, A.; Gaensicke, B. T.; Wheatley, P. J.; Pyrzas, S.; Staels, B.; Krajci, T.; Rodriguez-Gil, P.

    2012-10-20

    We present time-resolved photometry of a cataclysmic variable discovered in the Isaac Newton Telescope Photometric H{alpha} Survey of the northern galactic plane, IPHAS J062746.41+014811.3, and classify the system as the fourth deeply eclipsing intermediate polar known with an orbital period of P {sub orb} = 8.16 hr and a spin period of P {sub spin} = 2210 s. The system shows mild variations of its brightness that appear to be accompanied by a change in the amplitude of the spin modulation at optical wavelengths and a change in the morphology of the eclipse profile. The inferred magnetic moment of the white dwarf is {mu}{sub wd} {approx} (6-7) Multiplication-Sign 10{sup 33} G cm{sup 3}, and in this case IPHAS J062746.41+014811.3 will evolve either into a short-period EX Hya-like intermediate polar with a large P {sub spin}/P{sub orb} ratio or, perhaps more likely, into a synchronized polar. Swift observations show that the system is an ultraviolet and X-ray source, with a hard X-ray spectrum that is consistent with those seen in other intermediate polars. The ultraviolet light curve shows orbital modulation and an eclipse, while the low signal-to-noise ratio X-ray light curve does not show a significant modulation on the spin period. The measured X-ray flux is about an order of magnitude lower than would be expected from scaling by the optical fluxes of well-known X-ray-selected intermediate polars.

  12. FROM X-RAY DIPS TO ECLIPSE: WITNESSING DISK REFORMATION IN THE RECURRENT NOVA U Sco

    SciTech Connect (OSTI)

    Ness, J.-U.; Talavera, A.; Gonzalez-Riestra, R. [XMM-Newton Science Operations Centre, ESA, P.O. Box 78, 28691 Villanueva de la Canada, Madrid (Spain); Schaefer, B. E. [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 (United States); Dobrotka, A. [Department of Physics, Institute of Materials Science, Faculty of Materials Science and Technology, Slovak University of Technology, Jana Bottu 25, 91724 Trnava (Slovakia); Sadowski, A. [N. Copernicus Astronomical Center, Polish Academy of Sciences, Bartycka 18, 00-716 Warszawa (Poland); Drake, J. J.; Barnard, R. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Page, K. L. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Hernanz, M. [Institut de Ciencies de l'Espai (CSIC-IEEC), Campus UAB, Facultat de Ciencies, C5 parell 2on, 08193 Bellaterra (Barcelona) (Spain); Sala, G. [Departament Fisica i Enginyeria Nuclear, EUETIB (UPC-IEEC), Comte d'Urgell 187, 08036 Barcelona (Spain); Starrfield, S., E-mail: juness@sciops.esa.int [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States)

    2012-01-20

    The tenth recorded outburst of the recurrent eclipsing nova U Sco was observed simultaneously in X-ray, UV, and optical by XMM-Newton on days 22.9 and 34.9 after the outburst. Two full passages of the companion in front of the nova ejecta were observed, as was the reformation of the accretion disk. On day 22.9, we observed smooth eclipses in UV and optical but deep dips in the X-ray light curve that disappeared by day 34.9, yielding clean eclipses in all bands. X-ray dips can be caused by clumpy absorbing material that intersects the line of sight while moving along highly elliptical trajectories. Cold material from the companion could explain the absence of dips in UV and optical light. The disappearance of X-ray dips before day 34.9 implies significant progress in the formation of the disk. The X-ray spectra contain photospheric continuum emission plus strong emission lines, but no clear absorption lines. Both continuum and emission lines in the X-ray spectra indicate a temperature increase from day 22.9 to day 34.9. We find clear evidence in the spectra and light curves for Thompson scattering of the photospheric emission from the white dwarf. Photospheric absorption lines can be smeared out during scattering in a plasma of fast electrons. We also find spectral signatures of resonant line scattering that lead to the observation of the strong emission lines. Their dominance could be a general phenomenon in high-inclination systems such as Cal 87.

  13. Total Crude by Pipeline

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home PageMonthly","10/2015"4,"Ames5 Tables July 1996 Energy Information Administration Office of Coal, Nuclear,DecadeYearbyWithdrawalsHome6,672(MillionFeet)Product: Total

  14. THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. II. UPDATED BINARY STAR ORBITS AND A LONG PERIOD ECLIPSING BINARY

    SciTech Connect (OSTI)

    Muterspaugh, Matthew W.; O'Connell, J.; Hartkopf, William I.; Lane, Benjamin F.; Williamson, M.; Kulkarni, S. R.; Konacki, Maciej; Burke, Bernard F.; Colavita, M. M.; Shao, M.; Wiktorowicz, Sloane J. E-mail: wih@usno.navy.mi E-mail: maciej@ncac.torun.p

    2010-12-15

    Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems have been combined with lower precision single-aperture measurements covering a much longer timespan (from eyepiece measurements, speckle interferometry, and adaptive optics) to determine improved visual orbits for 20 binary stars. In some cases, radial velocity observations exist to constrain the full three-dimensional orbit and determine component masses. The visual orbit of one of these binaries-{alpha} Com (HD 114378)-shows that the system is likely to have eclipses, despite its very long period of 26 years. The next eclipse is predicted to be within a week of 2015 January 24.

  15. High-precision K-band photometry of the secondary eclipse of HD209458

    E-Print Network [OSTI]

    Ignas Snellen

    2005-07-26

    Recently, mid-infrared Spitzer observations have been presented that show the light decrement due to the passage of a planet behind its host star. These measurements of HD209458b and TrES-1 are the first detections of direct light from an extra-solar planet. Interpretation of these results in terms of planet equipartition temperature and bond albedo is however strongly model dependent and require additional observations at shorter wavelengths. Here we report on two attempts to detect the secondary eclipse of HD209458b from the ground in K-band, using the UK InfraRed Telescope (UKIRT). A photometry precision of 0.12% relative to two nearby reference stars was reached during both occasions, but no firm detection of the eclipses were obtained. The first observation shows a flux decrement of -0.13+-0.18%, and the second of -0.10+-0.10%. A detailed description of the observing strategy, data reduction and analysis is given, and a discussion on how the precision in ground-based K-band photometry could be further improved. In addition we show that the relative photometry between the target and the reference stars between the two epochs is consistent down to the <0.1% level, which is interesting in the light of possible near-infrared surveys to search for transiting planets around M and L dwarfs.

  16. Study of fusion regimes in an inertial electrostatic confinement device using the new eclipse disk diagnostic

    SciTech Connect (OSTI)

    Murali, S. Krupakar; Cipiti, B.B.; Santarius, J.F.; Kulcinski, G.L. [Fusion Technology Institute, University of Wisconsin, 1500 Engineering Drive, Madison, Wisconsin 53706 (United States)

    2006-05-15

    New diagnostics are required to understand the physics operation of an inertial electrostatic confinement (IEC) device. In an attempt to understand the fusion source regimes within the IEC device, a new diagnostic called the eclipse disk has been introduced. This diagnostic was used to exploit the byproduct protons' energy difference between the deuterium-deuterium (D-D) and deuterium--an isotope of helium with two protons and one neutron (D-{sup 3}He) reactions to study the contributions of the protons generated from various source regimes. These source regimes are divided into five categories namely: converged core, embedded, beam background, volume, and wall-surface sources. The eclipse disk diagnostic has provided the first confirmed evidence that D-{sup 3}He reactions are predominantly embedded reactions. It has been observed that at the present operating power levels (6-10 kW) most of the D-D reactions occur in the volume of the chamber caused by the charge exchanged neutrals, and the converged core contribution is significant only for D-D reactions. Since the branching ratio for the proton and neutron generation in a D-D fusion reaction is {approx}50%, it is inferred that the proton to neutron count ratio is a better parameter to monitor than either proton or neutron counts measured alone while studying the source regimes. This parameter may also be used for studying the potential wells within the cathode grid.

  17. Determination of Total Petroleum Hydrocarbons (TPH) Using Total Carbon Analysis

    SciTech Connect (OSTI)

    Ekechukwu, A.A.

    2002-05-10

    Several methods have been proposed to replace the Freon(TM)-extraction method to determine total petroleum hydrocarbon (TPH) content. For reasons of cost, sensitivity, precision, or simplicity, none of the replacement methods are feasible for analysis of radioactive samples at our facility. We have developed a method to measure total petroleum hydrocarbon content in aqueous sample matrixes using total organic carbon (total carbon) determination. The total carbon content (TC1) of the sample is measured using a total organic carbon analyzer. The sample is then contacted with a small volume of non-pokar solvent to extract the total petroleum hydrocarbons. The total carbon content of the resultant aqueous phase of the extracted sample (TC2) is measured. Total petroleum hydrocarbon content is calculated (TPH = TC1-TC2). The resultant data are consistent with results obtained using Freon(TM) extraction followed by infrared absorbance.

  18. Study on Alternative Cargo Launch Options from the Lunar Surface

    SciTech Connect (OSTI)

    Cheryl A. Blomberg; Zamir A. Zulkefli; Spencer W. Rich; Steven D. Howe

    2013-07-01

    In the future, there will be a need for constant cargo launches from Earth to Mars in order to build, and then sustain, a Martian base. Currently, chemical rockets are used for space launches. These are expensive and heavy due to the amount of necessary propellant. Nuclear thermal rockets (NTRs) are the next step in rocket design. Another alternative is to create a launcher on the lunar surface that uses magnetic levitation to launch cargo to Mars in order to minimize the amount of necessary propellant per mission. This paper investigates using nuclear power for six different cargo launching alternatives, as well as the orbital mechanics involved in launching cargo to a Martian base from the moon. Each alternative is compared to the other alternative launchers, as well as compared to using an NTR instead. This comparison is done on the basis of mass that must be shipped from Earth, the amount of necessary propellant, and the number of equivalent NTR launches. Of the options, a lunar coil launcher had a ship mass that is 12.7% less than the next best option and 17 NTR equivalent launches, making it the best of the presented six options.

  19. DISCOVERY OF AN ACCRETING MILLISECOND PULSAR IN THE ECLIPSING BINARY SYSTEM SWIFT J1749.42807

    E-Print Network [OSTI]

    Altamirano, D.

    We report on the discovery and the timing analysis of the first eclipsing accretion-powered millisecond X-ray pulsar (AMXP): SWIFT J1749.4-2807. The neutron star rotates at a frequency of ~517.9 Hz and is in a binary system ...

  20. Ground-based near-IR observations of the secondary eclipse of CoRoT-2b

    E-Print Network [OSTI]

    Alonso, R; Kabath, P; Rabus, M

    2010-01-01

    We present the results of a ground-based search for the secondary eclipse of the 3.3 Mjup transiting planet CoRoT-2b. We performed near infrared photometry using the LIRIS instrument on the 4.2 m William Herschel Telescope, in the H and K_s filters. We monitored the star around two expected secondary eclipses in two nights under very good observing conditions. For the depth of the secondary eclipse we find in H-band a 3 sigma upper limit of 0.17%, whereas we detected a tentative eclipse with a depth of 0.16+-0.09% in the K_s-band. These depths can be translated into brightness temperatures of T_H<2250 K and T_{K_s} = 1890(+260-350) K, which indicate an inefficient re-distribution of the incident stellar flux from the planet's dayside to its nightside. Our results are in agreement with the CoRoT optical measurement (Alonso et al. 09) and with Spitzer 4.5 and 8 micron results (Gillon et al. 09c).

  1. Studying the Lunar-Solar Wind Interaction with the SARA Experiment aboard the Indian Lunar Mission Chandrayaan-1

    E-Print Network [OSTI]

    Bhardwaj, Anil; Dhanya, M B; Wieser, Martin; Yoshifumi, Futaana; Holmstrom, Mats; Sridharan, R; Wurz, Peter; Schaufelberger, Audrey; Kazushi, Asamura; 10.1063/1.3395916

    2010-01-01

    The first Indian lunar mission Chandrayaan-1 was launched on 22 October 2008. The Sub-keV Atom Reflecting Analyzer (SARA) instrument onboard Chandrayaan-1 consists of an energetic neutral atom (ENA) imaging mass analyzer called CENA (Chandrayaan-1 Energetic Neutrals Analyzer), and an ion-mass analyzer called SWIM (Solar wind Monitor). CENA performed the first ever experiment to study the solar wind-planetary surface interaction via detection of sputtered neutral atoms and neutralized backscattered solar wind protons in the energy range ~0.01-3.0 keV. SWIM measures solar wind ions, magnetosheath and magnetotail ions, as well as ions scattered from lunar surface in the ~0.01-15 keV energy range. The neutral atom sensor uses conversion of the incoming neutrals to positive ions, which are then analyzed via surface interaction technique. The ion mass analyzer is based on similar principle. This paper presents the SARA instrument and the first results obtained by the SWIM and CENA sensors. SARA observations suggest...

  2. An integrated traverse planner and analysis tool for future lunar surface exploration

    E-Print Network [OSTI]

    Johnson, Aaron William

    2010-01-01

    This thesis discusses the Surface Exploration Traverse Analysis and Navigation Tool (SEXTANT), a system designed to help maximize productivity, scientific return, and safety on future lunar and planetary explorations,. The ...

  3. Electromagnetic probing of the lunar interior in the frequency region from one kilohertz to ten kilohertz

    E-Print Network [OSTI]

    Reisz, Albert Colbert

    1970-01-01

    For probable values of the lunar electromagnetic properties, a transverse magnetic surface wave may be propagated along the solar wind plasma-moon interface in the frequency range from about one kilohertz to about ten ...

  4. The Directional Dependence of the Lunar Cherenkov Technique for UHE Neutrino Detection

    E-Print Network [OSTI]

    C. W. James; R. J. Protheroe

    2008-11-07

    The LUNASKA (Lunar UHE Neutrino Astrophysics with the Square Kilometre Array) project is a theoretical and experimental project developing the lunar Cherenkov technique for the next generation of giant radio-telescope arrays. This contribution presents our simulation results on the directional dependence of the technique for UHE neutrino detection. In particular, these indicate that both the instantaneous sensitivities and time-integrated limits from lunar Cherenkov experiments such as those at Parkes, Goldstone, Kalyazin and ATCA are highly anisotropic. We study the regions of the sky which have not been probed by either these or other experiments, and present the expected sky coverage of future experiments with the SKA. Our results show how the sensitivity of Lunar Cherenkov observations to potential astrophysical sources of UHE particles may be maximised by choosing appropriate observations dates and antenna-beam pointing positions.

  5. Structural design of a lunar lander spacecraft for the Texas space grant regolith oxygen production experiment

    E-Print Network [OSTI]

    Baccus, Ronald Kregg

    1996-01-01

    The focus of this research is the determination of a structural design for the lunar lander spacecraft currently being developed by the Texas Space Grant Consortium to transport a regolith oxygen production experiment to the surface of the moon...

  6. Kinetic instabilities in the lunar wake: ARTEMIS observations J. B. Tao,1

    E-Print Network [OSTI]

    Bonnell, John W.

    with little disturbance [Ness et al., 1967; Ness, 1972]. [3] The density gradient between the lunar wake and the Apollo program in the 1960s and 1970s (see Ness [1972] and Schubert and Lichtenstein [1974] for review

  7. Direct Electrolysis of Molten Lunar Regolith for the Production of Oxygen and Metals on the Moon

    E-Print Network [OSTI]

    Sirk, Aislinn H.

    The feasibility of producing oxygen by direct electrolysis of the molten lunar regolith at 1600 C was investigated and the generation of usable oxygen gas at the anode and concomitant production of iron and silicon at the ...

  8. U.S. Total Exports

    Gasoline and Diesel Fuel Update (EIA)

    Total to Spain Cameron, LA Sabine Pass, LA Total to United Kingdom Sabine Pass, LA LNG Exports from Babb, MT LNG Exports from Buffalo, NY LNG Exports from Kenai, AK LNG Exports...

  9. Metal abundance of the eclipsing binary YZ Cas: discrepancy between atmospheric determinations for the Am component

    E-Print Network [OSTI]

    E. Lastennet; D. Valls-Gabaud; C. Jordi

    2000-11-21

    We review current and new estimates of the eclipsing binary YZ Cassiopeiae metallicity (Z). Since the individual components cover a quite large range of mass (1.35-2.31 Solar masses), YZ Cas is potentially one of the best stellar laboratories to understand the structure and evolution of 1 to 2 Solar masses stars. The derivation of Z from IUE spectra, as well as from photometric indices, provides the chemical composition of the atmosphere (Z_{atmospheric}), while the fit of evolutionary tracks provides the initial chemical composition (Z_{initial}). While a disagreement is expected between Z_{atmospheric} and Z_{initial} because the primary component is an Am star (one expects Z_{atmospheric} to be larger), we find some unexpected discrepancy between atmospheric determinations of Z for this star.

  10. First Determination of the Distance and Fundamental Properties of an Eclipsing Binary in The Andromeda Galaxy

    E-Print Network [OSTI]

    Ignasi Ribas; Carme Jordi; Francesc Vilardell; Edward L. Fitzpatrick; Ron W. Hilditch; Edward F. Guinan

    2005-11-01

    We present the first detailed spectroscopic and photometric analysis of an eclipsing binary in the Andromeda Galaxy (M31). This is a 19.3-mag semi-detached system with components of late-O and early-B spectral types. From the light and radial velocity curves we have carried out an accurate determination of the masses and radii of the components. Their effective temperatures have been estimated from the modeling of the absorption line spectra. The analysis yields an essentially complete picture of the properties of the system, and hence an accurate distance determination to M31. The result is d=772+/-44 kpc ((m-M)_0=24.44+/-0.12 mag). The study of additional systems, currently in progress, should reduce the uncertainty in the M31 distance to better than 5%.

  11. On the SW Sex-type eclipsing cataclysmic variable SDSS0756+0858

    SciTech Connect (OSTI)

    Tovmassian, Gagik; Hernandez, Mercedes Stephania; Gonzlez-Buitrago, Diego; Zharikov, Sergey; Garca-Daz, Maria Teresa, E-mail: gag@astro.unam.mx [Instituto de Astronoma, Universidad Nacional Autonoma de Mxico, Apdo. Postal 877, Ensenada, Baja California 22800 (Mexico)

    2014-03-01

    We conducted a spectroscopic and photometric study of SDSS J075653.11+085831. X-ray observations were also attempted. We determined the orbital period of this binary system to be 3.29 hr. It is a deep eclipsing system, whose spectra show mostly single-peaked, Balmer emission lines and a rather intense He II line. There is also the presence of faint (often double-peaked) He I emission lines as well as several absorption lines, Mg I being the most prominent. All of these features point toward the affiliation of this object with the growing number of SW Sex-type objects. We developed a phenomenological model of an SW Sex system to reproduce the observed photometric and spectral features.

  12. A study of the effects of surface loading and reorientation of the lunar surface

    E-Print Network [OSTI]

    Dawson, Cheryl Ann

    1986-01-01

    low near-side maria. The sharp definition of mascon edges indicates that they are near surface mass concentrations which are not isostatically compensated. The age of the lunar basalts (Wasserburg et al. , 1977) implies that the mascons have been...-side maria to form the mascon anomalies. Runcorn also proposed that the present non- hydrostatic second degree harmonic in the lunar figure was produced by a two-cell pattern of solid state convection. Although Runcorn believes that the non...

  13. Artificial Intelligence Approach to the Determination of Physical Properties of Eclipsing Binaries. I. The EBAI Project

    E-Print Network [OSTI]

    A. Prsa; E. F. Guinan; E. J. Devinney; M. DeGeorge; D. H. Bradstreet; J. M. Giammarco; C. R. Alcock; S. G. Engle

    2008-07-10

    Achieving maximum scientific results from the overwhelming volume of astronomical data to be acquired over the next few decades will demand novel, fully automatic methods of data analysis. Artificial intelligence approaches hold great promise in contributing to this goal. Here we apply neural network learning technology to the specific domain of eclipsing binary (EB) stars, of which only some hundreds have been rigorously analyzed, but whose numbers will reach millions in a decade. Well-analyzed EBs are a prime source of astrophysical information whose growth rate is at present limited by the need for human interaction with each EB data-set, principally in determining a starting solution for subsequent rigorous analysis. We describe the artificial neural network (ANN) approach which is able to surmount this human bottleneck and permit EB-based astrophysical information to keep pace with future data rates. The ANN, following training on a sample of 33,235 model light curves, outputs a set of approximate model parameters (T2/T1, (R1+R2)/a, e sin(omega), e cos(omega), and sin i) for each input light curve data-set. The whole sample is processed in just a few seconds on a single 2GHz CPU. The obtained parameters can then be readily passed to sophisticated modeling engines. We also describe a novel method polyfit for pre-processing observational light curves before inputting their data to the ANN and present the results and analysis of testing the approach on synthetic data and on real data including fifty binaries from the Catalog and Atlas of Eclipsing Binaries (CALEB) database and 2580 light curves from OGLE survey data. [abridged

  14. HZ Her: Stellar radius from X-ray eclipse observations, evolutionary state, and a new distance

    SciTech Connect (OSTI)

    Leahy, D. A.; Abdallah, M. H. [Department of Physics, University of Calgary, Calgary, Alberta T2N 1N4 (Canada)

    2014-10-01

    Observations of HZ Her/Her X-1 by the Rossi X-Ray Timing Explorer (RXTE) covering high state eclipses of the neutron star are analyzed here. Models of the eclipse are used to measure the radius and atmospheric scale height of HZ Her, the stellar companion to the neutron star. The radius is 2.58-3.01 10{sup 11} cm, depending on system inclination and mass ratio (q), with an accuracy of ?1 part in 1000 for given inclination and q. We fit Kurucz model stellar atmosphere models to archival optical observations. The resulting effective temperature (T {sub eff}) of the unheated face of HZ Her is determined to be in the 2? range of 7720 K-7865 K, and metallicity (log (Z/Z {sub ?})) in the range of 0.27 to +.03. The model atmosphere surface flux and new radius yield a new distance to HZ Her/Her X-1, depending on system inclination and q: a best-fit value of 6.1 kpc with upper and lower limits of 5.7 kpc and 7.0 kpc. We calculate stellar evolution models for the range of allowed masses (from orbital parameters) and allowed metallicities (from optical spectrum fits). The stellar models agree with T {sub eff} and the radius of HZ Her for two narrow ranges of mass: 2.15-2.20 M {sub ?} and 2.35-2.45 M {sub ?}. This lower mass range implies a low neutron star mass (1.3 M {sub ?}), whereas the higher mass range implies a high neutron star mass (1.5-1.7 M {sub ?}).

  15. THE WIRED SURVEY. III. AN INFRARED EXCESS AROUND THE ECLIPSING POST-COMMON ENVELOPE BINARY SDSS J030308.35+005443.7

    SciTech Connect (OSTI)

    Debes, John H.; Hoard, D. W.; Farihi, Jay; Wachter, Stefanie; Leisawitz, David T.; Cohen, Martin

    2012-11-01

    We present the discovery with WISE of a significant infrared excess associated with the eclipsing post-common envelope binary SDSS J030308.35+005443.7, the first excess discovered around a non-interacting white dwarf+main-sequence M dwarf binary. The spectral energy distribution of the white dwarf+M dwarf companion shows significant excess longward of 3 {mu}m. A T {sub eff} of 8940 K for the white dwarf is consistent with a cooling age >2 Gyr, implying that the excess may be due to a recently formed circumbinary dust disk of material that extends from the tidal truncation radius of the binary at 1.96 R {sub Sun} out to <0.8 AU, with a total mass of {approx}10{sup 20} g. We also construct WISE and follow-up ground-based near-infrared light curves of the system and find variability in the K band that appears to be in phase with ellipsoidal variations observed in the visible. The presence of dust might be due to (1) material being generated by the destruction of small rocky bodies that are being perturbed by an unseen planetary system or (2) dust condensing from the companion's wind. The high inclination of this system and the presence of dust make it an attractive target for M dwarf transit surveys and long-term photometric monitoring.

  16. The WIRED Survey III: An Infrared Excess around the Eclipsing Post-Common Envelope Binary SDSS J030308.35+005443.7

    E-Print Network [OSTI]

    Debes, John H; Farihi, Jay; Wachter, Stefanie; Leisawitz, David T; Cohen, Martin

    2012-01-01

    We present the discovery with WISE of a significant infrared excess associated with the eclipsing post-common envelope binary SDSSJ 030308.35+005443.7, the first excess discovered around a non-interacting white dwarf+main sequence M dwarf binary. The spectral energy distribution of the white dwarf+M dwarf companion shows significant excess longwards of 3-microns. A T_eff of 8940K for the white dwarf is consistent with a cooling age >2 Gyr, implying that the excess may be due to a recently formed circumbinary dust disk of material that extends from the tidal truncation radius of the binary at 1.96 Rsun out to <0.8 AU, with a total mass of ~10^20 g. We also construct WISE and follow-up ground-based near-infrared light curves of the system, and find variability in the K-band that appears to be in phase with ellipsoidal variations observed in the visible. The presence of dust might be due to a) material being generated by the destruction of small rocky bodies that are being perturbed by an unseen planetary sys...

  17. The Lunar Prospector Discovery mission: Mission and measurement description

    SciTech Connect (OSTI)

    Hubbard, G.S. [National Aeronautics and Space Administration, Moffett Field, CA (United States). Ames Research Center] [National Aeronautics and Space Administration, Moffett Field, CA (United States). Ames Research Center; Binder, A.B. [Lunar Research Inst., Gilroy, CA (United States)] [Lunar Research Inst., Gilroy, CA (United States); Feldman, W. [Los Alamos National Lab., NM (United States)] [Los Alamos National Lab., NM (United States)

    1998-06-01

    Lunar Prospector, the first competitively selected planetary mission in NASA`s Discovery Program, is described with emphasis on the radiation spectrometer instrumentation and anticipated scientific data return. Scheduled to be launched in January 1998, the mission will conduct a one year orbital survey of the Moon`s composition and structure. The suite of five instruments are outlined: neutron spectrometer, alpha particle spectrometer, gamma-ray spectrometer, electron reflectometer and magnetometer. Scientific requirements and measurement approach to detect water/ice to a sensitivity of 50 ppm (hydrogen), measure key elemental constituents, detect radioactive gas release events and accurately map the Moon`s gravitational and magnetic fields are given. A brief overview of the programmatic accomplishments in meeting a tightly constrained schedule and budget is also provided.

  18. Quantifying hazards: asteroid disruption in lunar distant retrograde orbits

    E-Print Network [OSTI]

    Roa, Javier

    2015-01-01

    The Asteroid Redirect Mission (ARM) proposes to retrieve a near-Earth asteroid and position it in a lunar distant retrograde orbit (DRO) for later study, crewed exploration, and ultimately resource exploitation. During the Caltech Space Challenge, a recent workshop to design a crewed mission to a captured asteroid in a DRO, it became apparent that the asteroid's low escape velocity (<1 cm s$^{-1}$) would permit the escape of asteroid particles during any meaningful interaction with astronauts or robotic probes. This Note finds that up to 5% of escaped asteroid fragments will cross Earth-geosynchronous orbits and estimates the risk to satellites from particle escapes or complete disruption of a loosely bound rubble pile.

  19. Characterization of plasma sprayed and explosively consolidated simulated lunar soil

    SciTech Connect (OSTI)

    Powell, S.J.; Inal, O.T.; Smith, M.F.

    1997-06-01

    Two methods for the use of lunar materials for the construction of shelters on the Moon are being proposed: explosive consolidation of the soil into structural components and plasma spraying of the soil to join components. The plasma-sprayed coating would also provide protection from the intense radiation. In this work, a mare simulant was plasma-sprayed onto a stainless steel substrate. Deposition of a 0.020 inch coating using power inputs of 23, 25, 27 and 29 kW were compared. Hardness of the coatings increased with each increase of power to the system, while porosity at the interface decreased. All coatings exhibited good adhesion. Simultaneously, an explosively consolidated sample was similarly characterized to afford a comparison of structural features associated with each mode of proposed use.

  20. MUJERES TOTAL BIOLOGIA 21 32

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    CIENCIAS ECON?MICAS Y EMPRESARIALES TOTAL DERECHO Nº de tesis leídas y aprobadas por centro y departamento en el año 2014 CENTRO DEPARTAMENTO Nº DE TESIS CIENCIAS MEDICINA TOTAL MEDICINA #12;MUJERES TOTAL Nº de tesis leídas y aprobadas por centro y departamento en el año 2014 CENTRO DEPARTAMENTO Nº DE TESIS

  1. Light curve solutions of six eclipsing binaries at the lower limit of periods of the W UMa stars

    E-Print Network [OSTI]

    Kjurkchieva, Diana P; Ibryamov, Sunay I

    2015-01-01

    Photometric observations in V and I bands of six eclipsing binaries at the lower limit of the orbital periods of W UMa stars are presented. Three of them are newly discovered eclipsing systems. The light curve solutions revealed that all short-period targets were contact or overcontact binaries and added new six binaries to the family of short-period systems with estimated parameters. Four binaries have equal in size components and mass ratio near 1. The phase variability of the V-I colors of all targets may be explained by lower temperatures of their back surfaces than those of their side surfaces. Five systems revealed O'Connell effect that was reproduced by cool spots on the side surfaces of their primary components. The light curves of V1067 Her in 2011 and 2012 were fitted by diametrically opposite spots. The applying of the criteria for subdivision of the W UMa stars to our targets led to ambiguous results.

  2. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    1.4 0.4 0.5 1.0 1.2 1.4 2.1 1.3 Table HC5.2 Living Space Characteristics by Year of Construction, 2005 Living Space Characteristics 1970 to 1979 1980 to 1989 1990 to 1999 2000 to...

  3. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    Table HC7.7 Air-Conditioning Usage Indicators by Household Income, 2005 Below Poverty Line Eligible for Federal Assistance 1 2005 Household Income Housing Units (millions)...

  4. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    ... 65.9 3.9 15.1 15.6 11.1 7.0 5.2 8.0 Without a Heat Pump... 53.5 3.5 12.9 12.7 8.6 5.5 4.2 6.2 With a Heat...

  5. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    em... 65.9 51.7 43.9 2.5 0.7 1.6 3.1 Without a Heat Pump... 53.5 41.1 34.8 2.1 0.5 1.2 2.6 With a Heat...

  6. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... 65.9 11.0 16.5 13.5 8.7 16.1 6.4 17.2 Without a Heat Pump... 53.5 9.4 13.6 10.7 7.1 12.7 5.4 14.5 With a Heat...

  7. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    1.5 2.3 3.0 6.0 For Two Housing Units... 0.9 0.3 0.4 Q Q N Q 0.4 Heat Pump... 9.2 1.2 2.2 2.0 1.3 2.4 0.6 1.9...

  8. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... 65.9 3.7 2.6 6.1 6.8 11.2 13.2 13.9 8.2 Without a Heat Pump... 53.5 3.6 2.3 5.5 5.8 9.5 10.1 10.3 6.4 With a...

  9. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    tem... 65.9 14.1 3.6 1.5 2.1 6.4 0.6 Without a Heat Pump... 53.5 12.4 3.1 1.3 1.8 5.7 0.6 With a Heat...

  10. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    75.6 9.6 18.0 16.4 11.3 20.3 6.4 17.9 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 7.6 14.2 13.1 9.2 14.6 5.0 14.5 Laptop...

  11. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    75.6 30.3 12.5 18.1 14.7 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 22.9 9.8 14.1 11.9...

  12. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    ... 75.6 17.5 12.1 5.4 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 14.1 10.0 4.0...

  13. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    75.6 13.7 17.5 26.6 17.8 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 10.4 14.1 20.5 13.7...

  14. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    ... 75.6 26.6 14.5 4.1 7.9 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 20.5 11.0 3.4 6.1...

  15. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    ... 0.7 Q Q Q Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 11.4 8.1 3.3 Flat-panel...

  16. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    ... 0.7 Q Q Q 0.3 Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 7.9 11.4 15.4 10.2 Flat-panel...

  17. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    ... 0.7 Q Q Q Q Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 2.3 2.5 3.1 4.8...

  18. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    ... 0.7 Q Q Q Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 7.9 5.6 2.4 Flat-panel...

  19. Total..........................................................

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... 0.7 Q Q Q Q Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 15.4 7.9 2.8 4.8 Flat-panel...

  20. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    ... 0.7 0.3 Q Q Q Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 17.7 7.5 10.2 9.6 Flat-panel...

  1. Total..........................................................

    U.S. Energy Information Administration (EIA) Indexed Site

    ... 75.6 17.8 5.3 12.5 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 13.7 4.2 9.5 Laptop...

  2. Total..........................................................

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... 0.7 0.3 Q Q Type of Monitor Used on Most-Used PC Desk-top CRT (Standard Monitor)... 45.0 10.2 3.2 7.0 Flat-panel...

  3. Total..........................................................

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... 75.6 4.2 5.0 5.3 9.0 Most-Used Personal Computer Type of PC Desk-top Model... 58.6 3.2 3.9 4.0 6.7...

  4. Total..........................................................

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    1.2 0.5 0.9 3 or More... 0.6 Q Q Q Q Q N Q Plasma Television Sets... 3.6 0.6 0.8 0.5 0.6 1.2 0.3 0.9...

  5. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Q 0.4 3 or More Units... 5.4 0.3 Q Q Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  6. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... 1.9 1.1 Q Q 0.3 Q Do Not Use Central Air-Conditioning... 45.2 24.6 3.6 5.0 8.8 3.2 Use a Programmable...

  7. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3.3 2.9 Q Q Q N For Two Housing Units... 1.4 Q Q 0.5 0.8 N Central Warm-Air Furnace... 2.8 2.4 Q Q Q 0.2 Other...

  8. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 or More Units... 5.4 2.4 1.4 0.7 0.9 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  9. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    s... 58.2 9.2 4.9 7.8 7.1 8.8 8.4 7.8 4.2 Central Warm-Air Furnace... 44.7 5.2 3.1 5.6 5.2 7.1 7.4 7.3 3.9 For...

  10. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 or More Units... 5.4 2.3 1.7 0.6 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  11. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 or More Units... 5.4 2.1 0.9 0.2 1.0 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  12. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    38.9 12.9 Have Equipment But Do Not Use it... 1.9 0.3 Q 0.5 1.0 Air-Conditioning Equipment 1, 2 Central System......

  13. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0.3 3 or More Units... 5.4 0.7 0.5 Q Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  14. Total..........................................................

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 or More Units... 5.4 2.3 0.7 2.1 0.3 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  15. Total..............................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1 86.6

  16. Total................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1

  17. Total........................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1 111.1

  18. Total..........................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1

  19. Total...........................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1Q

  20. Total...........................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1QQ

  1. Total...........................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6 111.1QQ14.7

  2. Total...........................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4 12.55.6

  3. Total............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4

  4. Total............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.4

  5. Total.............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8 20.6 13.1

  6. Total..............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8 20.6

  7. Total..............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8 20.6Do Not

  8. Total...............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8 20.6Do

  9. Total...............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8 20.6Do0.7

  10. Total...............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8

  11. Total...............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do Not Have

  12. Total...............................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do Not

  13. Total................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do Not

  14. Total.................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do Not49.2

  15. Total.................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do

  16. Total.................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do26.7 28.8

  17. Total..................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do26.7

  18. Total..................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do26.733.0

  19. Total..................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7 28.8Do26.733.0.

  20. Total...................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.7

  1. Total...................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.8 1.0 1.2

  2. Total...................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.8 1.0

  3. Total...................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.8 1.0Type

  4. Total...................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.8

  5. Total....................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.814.7 7.4

  6. Total.......................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.814.7

  7. Total.......................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2 7.814.75.6

  8. Total.......................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.2

  9. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.225.6 40.7

  10. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.225.6

  11. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.225.65.6 17.7

  12. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.225.65.6

  13. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7 7.426.715.225.65.64.2

  14. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.7

  15. Total........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.7 22.3 Do

  16. Total.........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.7 22.3

  17. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.7 22.325.6

  18. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.7 22.325.6.

  19. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.7

  20. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.70.7 21.7

  1. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.70.7 21.74.2

  2. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.70.7

  3. Total..........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.70.77.1 19.0

  4. Total...........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.70.77.1

  5. Total...........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0 22.70.77.15.6

  6. Total...........................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0

  7. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0Do Not Have

  8. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0Do Not

  9. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0Do NotCooking

  10. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0Do NotCookingDo

  11. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0Do

  12. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0DoCooking

  13. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0DoCookingDo Not

  14. Total.............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0DoCookingDo

  15. Total..............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 19.0DoCookingDo20.6

  16. Total..............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1

  17. Total..............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1 7.0 8.0

  18. Total..............................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1 7.0 8.07.1

  19. Total.................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1 7.0

  20. Total.................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1 7.07.1 7.0

  1. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1 7.07.1

  2. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1 7.07.15.6

  3. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1

  4. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1Personal

  5. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 7.1Personal4.2

  6. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1

  7. Total....................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 111.1 47.1

  8. Total.........................................................................................

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight.... 111.1 14.77.1 111.1 111.1

  9. Total

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home PageMonthly","10/2015"4,"Ames5 Tables July 1996 Energy Information Administration Office of Coal, Nuclear,DecadeYearbyWithdrawalsHome6,672(MillionFeet) Oil4)5,Product:

  10. Total

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home PageMonthly","10/2015"4,"Ames5 Tables July 1996 Energy Information Administration Office of Coal, Nuclear,DecadeYearbyWithdrawalsHome6,672(MillionFeet)

  11. The EB factory project. I. A fast, neural-net-based, general purpose light curve classifier optimized for eclipsing binaries

    SciTech Connect (OSTI)

    Paegert, Martin; Stassun, Keivan G.; Burger, Dan M. [Department of Physics and Astronomy, Vanderbilt University, Vu Station B 1807, Nashville, TN 37235 (United States)

    2014-08-01

    We describe a new neural-net-based light curve classifier and provide it with documentation as a ready-to-use tool for the community. While optimized for identification and classification of eclipsing binary stars, the classifier is general purpose, and has been developed for speed in the context of upcoming massive surveys such as the Large Synoptic Survey Telescope. A challenge for classifiers in the context of neural-net training and massive data sets is to minimize the number of parameters required to describe each light curve. We show that a simple and fast geometric representation that encodes the overall light curve shape, together with a chi-square parameter to capture higher-order morphology information results in efficient yet robust light curve classification, especially for eclipsing binaries. Testing the classifier on the ASAS light curve database, we achieve a retrieval rate of 98% and a false-positive rate of 2% for eclipsing binaries. We achieve similarly high retrieval rates for most other periodic variable-star classes, including RR Lyrae, Mira, and delta Scuti. However, the classifier currently has difficulty discriminating between different sub-classes of eclipsing binaries, and suffers a relatively low (?60%) retrieval rate for multi-mode delta Cepheid stars. We find that it is imperative to train the classifier's neural network with exemplars that include the full range of light curve quality to which the classifier will be expected to perform; the classifier performs well on noisy light curves only when trained with noisy exemplars. The classifier source code, ancillary programs, a trained neural net, and a guide for use, are provided.

  12. Lunar Outgassing, Transient Phenomena and The Return to The Moon, III: Observational and Experimental Techniques

    E-Print Network [OSTI]

    Arlin P. S. Crotts

    2007-06-27

    In Papers II and III we show that Transient Lunar Phenomena (TLPs) are likely related to lunar outgassing, albeit in ways not fully understood. Here we propose a path forward, in which current and forthcoming technologies provide a more controlled, sensitive probe of lunar outgassing. Many of these techniques are being realized for the first time. Given the optical transient/outgassing connection, progress can be made by remote sensing, and we suggest programs of imaging, spectroscopy and combinations thereof. However, as found in Paper II, many aspects of lunar outgassing seem covert in nature. TLPs betray outgassing, but not all outgassing produces TLPs. Some outgassing may never appear at the surface, but remain trapped in the regolith. We also suggest more intrusive techniques, from radar mapping to in-situ probes. Understanding these volatiles seems promising in terms of a resource for humans on the Moon and beyond, and offers an interesting scientific goal in its own right. Hence this paper is a series of proposed techniques, some in practice, some which might be soon, and some requiring significant future investment, some of which may prove unwise pending results from predecessor investigations. These point towards enhancement of our knowledge of lunar outgassing, its relation to other lunar processes, and an increase in our understanding of how volatiles are involved in the evolution of the Moon. We emphasize certain ground-based observations in time for flights of SELENE, LRO and other robotic missions, and others before extensive human xploration. We discuss how study of the pristine lunar atmosphere pertains to understanding the role of anthropogenic volatiles, an important confusing signal

  13. A Basic LEGO Reactor Design for the Provision of Lunar Surface Power

    SciTech Connect (OSTI)

    John Darrell Bess

    2008-06-01

    A final design has been established for a basic Lunar Evolutionary Growth-Optimized (LEGO) Reactor using current and near-term technologies. The LEGO Reactor is a modular, fast-fission, heatpipe-cooled, clustered-reactor system for lunar-surface power generation. The reactor is divided into subcritical units that can be safely launched with lunar shipments from Earth, and then emplaced directly into holes drilled into the lunar regolith to form a critical reactor assembly. The regolith would not just provide radiation shielding, but serve as neutron-reflector material as well. The reactor subunits are to be manufactured using proven and tested materials for use in radiation environments, such as uranium-dioxide fuel, stainless-steel cladding and structural support, and liquid-sodium heatpipes. The LEGO Reactor system promotes reliability, safety, and ease of manufacture and testing at the cost of an increase in launch mass per overall rated power level and a reduction in neutron economy when compared to a single-reactor system. A single unshielded LEGO Reactor subunit has an estimated mass of approximately 448 kg and provides approximately 5 kWe. The overall envelope for a single subunit with fully extended radiator panels has a height of 8.77 m and a diameter of 0.50 m. Six subunits could provide sufficient power generation throughout the initial stages of establishing a lunar outpost. Portions of the reactor may be neutronically decoupled to allow for reduced power production during unmanned periods of base operations. During later stages of lunar-base development, additional subunits may be emplaced and coupled into the existing LEGO Reactor network, subject to lunar base power demand. Improvements in reactor control methods, fuel form and matrix, shielding, as well as power conversion and heat rejection techniques can help generate an even more competitive LEGO Reactor design. Further modifications in the design could provide power generative opportunities for use on other extraterrestrial surfaces.

  14. Spitzer Secondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra

    E-Print Network [OSTI]

    Kammer, Joshua A; Line, Michael R; Fortney, Jonathan J; Deming, Drake; Burrows, Adam; Cowan, Nicolas B; Triaud, Amaury H M J; Agol, Eric; Desert, Jean-Michel; Fulton, Benjamin J; Howard, Andrew W; Laughlin, Gregory P; Lewis, Nikole K; Morley, Caroline V; Moses, Julianne I; Showman, Adam P; Todorov, Kamen O

    2015-01-01

    In this work we present Spitzer 3.6 and 4.5 micron secondary eclipse observations of five new cool (planets: HAT-P-19b, WASP-6b, WASP-10b, WASP-39b, and WASP-67b. We compare our measured eclipse depths to the predictions of a suite of atmosphere models and to eclipse depths for planets with previously published observations in order to constrain the temperature- and mass-dependent properties of gas giant planet atmospheres. We find that the dayside emission spectra of planets less massive than Jupiter require models with efficient circulation of energy to the night side and/or increased albedos, while those with masses greater than that of Jupiter are consistently best-matched by models with inefficient circulation and low albedos. At these relatively low temperatures we expect the atmospheric methane to CO ratio to vary as a function of metallicity, and we therefore use our observations of these planets to constrain their atmospheric metallicities. We find that the most massi...

  15. LUNAR UETEORITES Y82].92 AND Y821.93: GEOCHEI{TCAL AI{D PETROI,OGIC COMPARISONS TO OTHER LUNAR BRECCIAS

    E-Print Network [OSTI]

    of the-Moon. They are random samples of the lunar crust that were sent to Earth by meteorite i4pact breccias. They may have been early breccias-in the megar6golith which were buiied'and sheltered from

  16. MUJERES ( * ) TOTAL BIOLOGA 16 22

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    13 INGENIERA INFORMTICA 2 11 TOTAL ESCUELA POLITCNICA SUPERIOR 2 11 ANTROPOLOGA SOCIAL Y TEORA DEL ARTE 1 1 LINGISTICA 4 7 MSICA 1 3 PREHISTORIA Y ARQUEOLOGA 0 1 TOTAL FILOSOFA Y LETRAS 22 Y EMPRESARIALES Fuente: Centro de Estudios de Posgrado, a 9 de Julio del 2010 DERECHO ESCUELA

  17. Proposal for a Planetary Geology and Geophysics Initiative on Lunar Drilling Shaopeng Huang, Dept. Geol. Sciences., University of Michigan, Ann Arbor, MI 48109-1005

    E-Print Network [OSTI]

    Huang, Shaopeng

    Proposal for a Planetary Geology and Geophysics Initiative on Lunar Drilling Shaopeng Huang, Dept and technology. As the Moon is the cornerstone for deep space exploration, lunar drilling will become technologies for lunar drilling is lagging behind deep space exploration strategy and planning. Compelling

  18. Regarding the possible generation of a lunar nightside exo-ionosphere W.M. Farrell a,d,

    E-Print Network [OSTI]

    California at Berkeley, University of

    Note Regarding the possible generation of a lunar nightside exo-ionosphere W.M. Farrell a,d, , J of Maryland/Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States d NASA's Lunar Science 2011 Keywords: Moon Ionospheres a b s t r a c t The non-condensing neutral helium exosphere is at its

  19. Cooling history of lunar Mg-suite gabbronorite 76255, troctolite 76535 and Stillwater pyroxenite SC-936: The record

    E-Print Network [OSTI]

    Ganguly, Jibamitra

    Cooling history of lunar Mg-suite gabbronorite 76255, troctolite 76535 and Stillwater pyroxenite SC determined cooling rates of orthopyroxene crystals from two Mg-suite lunar samples (gabbronorite 76255), on the basis of their FeMg ordering states. In addition, a cooling rate of 76255 was determined by modeling

  20. The origin of young mare basalts inferred from lunar meteorites Northwest Africa 4734, 032, and LaPaz Icefield 02205

    E-Print Network [OSTI]

    The origin of young mare basalts inferred from lunar meteorites Northwest Africa 4734, 032, and La accepted 21 October 2013) AbstractNorthwest Africa (NWA) 4734 is an unbrecciated basaltic lunar meteorite basalts. NWA 4734 is a low-Ti mare basalt with a low Mg* (36.5) and elevated abundances of incompatible

  1. Sputtering of lunar regolith simulant by protons and singly and multicharged Ar ions at solar wind energies

    E-Print Network [OSTI]

    Sputtering of lunar regolith simulant by protons and singly and multicharged Ar ions at solar wind 2010 Keywords: Solar wind Sputtering Lunar regolith Ion-surface interactions a b s t r a c t We report charged solar wind ions using quadrupole and time-of-flight (TOF) mass spectrometry approaches. Sputtering

  2. Loss of solar wind plasma neutrality and affect on surface potentials near the lunar terminator and shadowed polar regions

    E-Print Network [OSTI]

    California at Berkeley, University of

    Loss of solar wind plasma neutrality and affect on surface potentials near the lunar terminator (2008), Loss of solar wind plasma neutrality and affect on surface potentials near the lunar terminator observations confirm a consistent solar wind-to-wake potential difference of many hundreds of volts (negative

  3. Fundamental Properties and Distances of LMC Eclipsing Binaries: III. EROS 1044

    E-Print Network [OSTI]

    Ignasi Ribas; Edward L. Fitzpatrick; Frank P. Maloney; Edward F. Guinan; Andrzej Udalski

    2002-04-03

    We present results from a detailed analysis of a third eclipsing binary (EB) system in the Large Magellanic Cloud, EROS 1044 (~B2 IV-V + ~B2 III-IV). Our study combines the "classical" EB study of light and radial velocity curves with detailed modeling of the observed spectral energy distribution, and yields an essentially complete picture of the stellar properties of the system and a determination of its distance. The observational data exploited include optical photometry, space-based UV spectroscopy, and UV/optical spectrophotometry. The advantages of our technique include numerous consistency checks and, in the case of the distance determinations, the absence of zero point uncertainties and adjustable parameters. We find the EROS 1044 system to consist of a pair of normal, mildly-evolved ~21000 K stars, whose derived properties are consistent with stellar evolution calculations. The distance to the system is 47.5+/-1.8 kpc. We discuss the implications of our results for three EB systems (HV 2274, HV 982, and EROS 1044) on the general distance to the Large Magellanic Cloud.

  4. KIC 9246715: The Double Red Giant Eclipsing Binary With Odd Oscillations

    E-Print Network [OSTI]

    Rawls, Meredith L; McKeever, Jean; Jackiewicz, Jason; Orosz, Jerome A; Corsaro, Enrico; Beck, Paul; Mosser, Benot; Latham, David W; Latham, Christian A

    2016-01-01

    We combine Kepler photometry with ground-based spectra to present a comprehensive dynamical model of the double red giant eclipsing binary KIC 9246715. While the two stars are very similar in mass (M1 = 2.171 [+0.006 / -0.008], M2 = 2.149 [+0.006 / -0.008] Msun) and radius (R1 = 8.37 [+0.03 / -0.07], R2 = 8.30 [+0.04 / -0.03] Rsun), an asteroseismic analysis finds one main set of solar-like oscillations with unusually low-amplitude, wide modes. A second set of oscillations from the other star may exist, but this marginal detection is extremely faint. Because the two stars are nearly twins, KIC 9246715 is a difficult target for a precise test of the asteroseismic scaling relations, which yield M = 2.17 +/- 0.14 Msun and R = 8.26 +/- 0.18 Rsun. Both stars are consistent with the inferred asteroseismic properties, but we suspect the main oscillator is Star 2 because it is less active than Star 1. We find evidence for stellar activity and modest tidal forces acting over the 171-day eccentric orbit, which are like...

  5. Water vapor in the spectrum of the extrasolar planet HD 189733b. II. The eclipse

    SciTech Connect (OSTI)

    Crouzet, Nicolas; McCullough, Peter R.; Deming, Drake; Madhusudhan, Nikku

    2014-11-10

    Spectroscopic observations of exoplanets are crucial to infer the composition and properties of their atmospheres. HD 189733b is one of the most extensively studied exoplanets and is a cornerstone for hot Jupiter models. In this paper, we report the dayside emission spectrum of HD 189733b in the wavelength range 1.1-1.7 ?m obtained with the Hubble Space Telescope Wide Field Camera 3 (WFC3) in spatial scan mode. The quality of the data is such that even a straightforward analysis yields a high-precision Poisson noise-limited spectrum: the median 1? uncertainty is 57 ppm per 0.02 ?m bin. We also build a white-light curve correcting for systematic effects and derive an absolute eclipse depth of 96 39 ppm. The resulting spectrum shows marginal evidence for water vapor absorption, but can also be well explained by a blackbody spectrum. However, the combination of these WFC3 data with previous Spitzer photometric observations is best explained by a dayside atmosphere of HD 189733b with no thermal inversion and a nearly solar or subsolar H{sub 2}O abundance in a cloud-free atmosphere. Alternatively, this apparent subsolar abundance may be the result of clouds or hazes that future studies need to investigate.

  6. KIC 4739791: A New R CMa-type Eclipsing Binary with a Pulsating Component

    E-Print Network [OSTI]

    Lee, Jae Woo; Hong, Kyeongsoo; Koo, Jae-Rim; Lee, Chung-Uk; Youn, Jae-Hyuck

    2015-01-01

    The {\\it Kepler} light curve of KIC 4739791 exhibits partial eclipses, inverse O'Connell effect, and multiperiodic pulsations. Including a starspot on either of the binary components, the light-curve synthesis indicates that KIC 4739791 is in detached or semi-detached configurations with both a short orbital period and a low mass ratio. Multiple frequency analyses were performed in the light residuals after subtracting the binarity effects from the original {\\it Kepler} data. We detected 14 frequencies: six in the low-frequency region (0.1$-$2.3 d$^{-1}$) and eight in the high-frequency region (18.2$-$22.0 d$^{-1}$). Among these, six high frequencies with amplitudes of 0.62$-$1.97 mmag were almost constant over time for 200 d. Their pulsation periods and pulsation constants are in the ranges of 0.048$-$0.054 d and 0.025$-$0.031 d, respectively. In contrast, the other frequencies may arise from the alias effects caused by the orbital frequency or combination frequencies. We propose that KIC 4739791 is a short-...

  7. U.S. Total Exports

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Cameron, LA Sabine Pass, LA Total to United Kingdom Freeport, TX Sabine Pass, LA LNG Exports from Cameron, LA LNG Exports from Kenai, AK LNG Exports from Freeport, TX LNG Exports...

  8. MUJERES ( * ) TOTAL BIOLOGA 18 22

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    DE PROFESORADO Y EDUCACI?N CIENCIAS ECON?MICAS Y EMPRESARIALES Nº de tesis leídas y aprobadas por centro y departamento en el año 2010 CENTRO DEPARTAMENTO Nº TESIS CIENCIAS #12;ANATOMÍA PATOL?GICA 0 1 Y DE LA EDUCACI?N 0 2 PSICOLOGÍA SOCIAL Y METODOLOGÍA 3 8 TOTAL PSICOLOGÍA 11 26 TOTAL TESIS LEIDAS

  9. Temporal Variability of Lunar Exospheric Helium During January 2012 from LRO/LAMP

    E-Print Network [OSTI]

    Feldman, Paul D; Retherford, Kurt D; Gladstone, G Randall; Stern, S Alan; Pryor, Wayne; Parker, Joel Wm; Kaufmann, David E; Davis, Michael W; Versteeg, Maarten

    2012-01-01

    We report observations of the lunar helium exosphere made between December 29, 2011, and January 26, 2012, with the Lyman Alpha Mapping Project (LAMP) ultraviolet spectrograph on NASA's Lunar Reconnaissance Orbiter Mission (LRO). The observations were made of resonantly scattered He I 584 from illuminated atmosphere against the dark lunar surface on the dawn side of the terminator. We find no or little variation of the derived surface He density with latitude but day-to-day variations that likely reflect variations in the solar wind alpha flux. The 5-day passage of the Moon through the Earth's magnetotail results in a factor of two decrease in surface density, which is well explained by model simulations.

  10. Space reactor/Stirling cycle systems for high power Lunar applications

    SciTech Connect (OSTI)

    Schmitz, P.D.; Mason, L.S.

    1994-09-01

    NASA`s Space Exploration Initiative (SEI) has proposed the use of high power nuclear power systems on the lunar surface as a necessary alternative to solar power. Because of the long lunar night ({approximately} 14 earth days) solar powered systems with the requisite energy storage in the form of regenerative fuel cells or batteries becomes prohibitively heavy at high power levels ({approximately} 100 kWe). At these high power levels nuclear power systems become an enabling technology for variety of missions. One way of producing power on the lunar surface is with an SP-100 class reactor coupled with Stirling power converters. In this study, analysis and characterization of the SP-100 class reactor coupled with Free Piston Stirling Power Conversion (FPSPC) system will be performed. Comparison of results with previous studies of other systems, particularly Brayton and Thermionic, are made.

  11. Total transmission and total reflection by zero index materials

    E-Print Network [OSTI]

    Viet Cuong Nguyen; Lang Chen

    2010-07-01

    In this report, we achieved total transmission and reflection in a slab of zero index materials with defect(s). By controlling the defect's radius and dielectric constant, we can obtain total transmission and reflection of EM wave. The zero index materials, in this report, stand for materials with permittivity and permeability which are simultaneously equal to zero or so called matched impedance zero index materials. Along with theoretical calculations and simulation demonstrations, we also discuss about some possible applications for the proposed structure such as shielding or cloaking an object without restricting its view. We also suggest a way to control total transmission and reflection actively by using tunable refractive index materials such as liquid crystal and BST. The physics behind those phenomena is attributed to intrinsic properties of zero index materials: constant field inside zero index slab.

  12. First science with SALT: peering at the accreting polar caps of the eclipsing polar SDSS J015543.40+002807.2

    E-Print Network [OSTI]

    D. O'Donoghue; D. A. H. Buckley; L. A. Balona; D. Bester; L. Botha; J. Brink; D. B. Carter; P. A. Charles; A. Christians; F. Ebrahim; R. Emmerich; W. Esterhuyse; G. P. Evans; C. Fourie; P. Fourie; H. Gajjar; M. Gordon; C. Gumede; M. de Kock; A. Koeslag; W. P. Koorts; H. Kriel; F. Marang; J. G. Meiring; J. W. Menzies; P. Menzies; D. Metcalfe; B. Meyer; L. Nel; J. O'Connor; F. Osman; C. du Plessis; H. Rall; A. Riddick; E. Romero-Colmenero; S. B. Potter; C. Sass; H. Schalekamp; N. Sessions; S. Siyengo; V. Sopela; H. Steyn; J. Stoffels; J. Stoltz; G. Swart; A. Swat; J. Swiegers; T. Tiheli; P. Vaisanen; W. Whittaker; F. van Wyk

    2006-07-12

    We describe briefly the properties of the recently completed Southern African Large Telescope (SALT), along with its first light imager SALTICAM. Using this instrument, we present 4.3 hr of high speed unfiltered photometric observations of the eclipsing polar SDSSJ015543.40+002807.2 with time resolution as short as 112 ms, the highest quality observations of this kind of any polar to date. The system was observed during its high luminosity state. Two accreting poles are clearly seen in the eclipse light curve. The binary system parameters have been constrained: the white dwarf mass is at the low end of the range expected for cataclysmic variables. Correlations between the positions of the accretion regions on or near the surface of the white dwarf and the binary system parameters were established. The sizes of the accretion regions and their relative movement from eclipse to eclipse were estimated: they are typically 4-7 deg depending on the mass of the white dwarf. The potential of these observations will only fully be realised when low state data of the same kind are obtained and the contact phases of the eclipse of the white dwarf are measured.

  13. Lunar Outgassing, Transient Phenomena and The Return to The Moon, I: Existing Data

    E-Print Network [OSTI]

    Arlin P. S. Crotts

    2007-06-27

    Herein the transient lunar phenomena (TLP) report database is subjected to a discriminating statistical filter robust against sites of spurious reports, and produces a restricted sample that may be largely reliable. This subset is highly correlated geographically with the catalog of outgassing events seen by the Apollo 15, 16 and Lunar Prospector alpha-particle spectrometers for episodic Rn-222 gas release. Both this robust TLP sample and even the larger, unfiltered sample are highly correlated with the boundary between mare and highlands, as are both deep and shallow moonquakes, as well as Po-210, a long-lived product of Rn-222 decay and a further tracer of outgassing. This offers another significant correlation relating TLPs and outgassing, and may tie some of this activity to sagging mare basalt plains (perhaps mascons). Additionally, low-level but likely significant TLP activity is connected to recent, major impact craters (while moonquakes are not), which may indicate the effects of cracks caused by the impacts, or perhaps avalanches, allowing release of gas. The majority of TLP (and Rn-222) activity, however, is confined to one site that produced much of the basalt in the Procellarum Terrane, and it seems plausible that this TLP activity may be tied to residual outgassing from the formerly largest volcanic ffusion sites from the deep lunar interior. With the coming in the next few years of robotic spacecraft followed by human exploration, the study of TLPs and outgassing is both promising and imperiled. We will have an unprecedented pportunity to study lunar outgassing, but will also deal with a greater burden of anthropogenic lunar gas than ever produced. There is a pressing need to study lunar atmosphere and its sources while still pristine. [Abstract abridged.

  14. Radiation dose estimates for typical piloted NTR lunar and Mars mission engine operations

    SciTech Connect (OSTI)

    Schnitzler, B.G. (EG and G Idaho, Inc., Idaho Falls, ID (United States)); Borowski, S.K. (National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center)

    1991-01-01

    The natural and manmade radiation environments to be encountered during lunar and Mars missions are qualitatively summarized. The computational methods available to characterize the radiation environment produced by an operating nuclear propulsion system are discussed. Mission profiles and vehicle configurations are presented for a typical all-propulsive, fully reusable lunar mission and for a typical all-propulsive Mars mission. Estimates of crew location biological doses are developed for all propulsive maneuvers. Post-shutdown dose rates near the nuclear engine are estimated at selected mission times. 15 refs., 4 figs.

  15. Advances in total scattering analysis

    SciTech Connect (OSTI)

    Proffen, Thomas E [Los Alamos National Laboratory; Kim, Hyunjeong [Los Alamos National Laboratory

    2008-01-01

    In recent years the analysis of the total scattering pattern has become an invaluable tool to study disordered crystalline and nanocrystalline materials. Traditional crystallographic structure determination is based on Bragg intensities and yields the long range average atomic structure. By including diffuse scattering into the analysis, the local and medium range atomic structure can be unravelled. Here we give an overview of recent experimental advances, using X-rays as well as neutron scattering as well as current trends in modelling of total scattering data.

  16. TWENTY-FIVE SUBARCSECOND BINARIES DISCOVERED BY LUNAR OCCULTATIONS

    SciTech Connect (OSTI)

    Richichi, A.; Fors, O.; Cusano, F.; Moerchen, M.

    2013-09-15

    We report on 25 subarcsecond binaries, detected for the first time by means of lunar occultations in the near-infrared (near-IR) as part of a long-term program using the ISAAC instrument at the ESO Very Large Telescope. The primaries have magnitudes in the range K = 3.8-10.4, and the companions in the range K = 6.4-12.1. The magnitude differences have a median value of 2.8, with the largest being 5.4. The projected separations are in the range 6-748 mas and with a median of 18 mas, or about three times less than the diffraction limit of the telescope. Among our binary detections are a pre-main-sequence star and an enigmatic Mira-like variable previously suspected to have a companion. Additionally, we quote an accurate first-time near-IR detection of a previously known wider binary. We discuss our findings on an individual basis as far as made possible by the available literature, and we examine them from a statistical point of view. We derive a typical frequency of binarity among field stars of Almost-Equal-To 10%, in the resolution and sensitivity range afforded by the technique ( Almost-Equal-To 0.''003 to Almost-Equal-To 0.''5, and K Almost-Equal-To 12 mag, respectively). This is in line with previous results using the same technique but we point out interesting differences that we can trace up to sensitivity, time sampling, and average distance of the targets. Finally, we discuss the prospects for further follow-up studies.

  17. /sup 10/Be profiles in lunar surface rock 68815

    SciTech Connect (OSTI)

    Nishiizumi, K.; Imamura, M.; Kohl, C.P.; Nagai, H.; Kobayashi, K.; Yoshida, K.; Yamashita, H.; Reedy, R.C.; Honda, M.; Arnold, J.R.

    1987-01-01

    Cosmic ray produced /sup 10/Be (t/sub 1/2/ = 1.6 x 10/sup 6/ years) activities have been measured in fourteen carefully ground samples of lunar surface rock 68815. The /sup 10/Be profiles from 0 to 4 mm are nearly flat for all three surface angles measured and show a very slight increase with depth from the surface to a depth of 1.5 cm. These depth profiles are in contrast to the SCR (solar cosmic ray) produced /sup 26/Al and /sup 53/Mn profiles measured from these same samples. There is no sign of SCR produced /sup 10/Be in this rock. The discrepancy between the data and the Reedy-Arnold theoretical calculation (about 2 dpm /sup 10/Be/kg at the surface) can be explained in two ways: (1) the low energy proton induced cross sections for /sup 10/Be production from oxygen are really lower than those used in the calculations or, (2) compared to the reported fits for /sup 26/Al and /sup 53/Mn, the solar proton spectral shape is actually softer (exponential rigidity parameter Ro less than 100 MV), the omnidirectional flux above 10 MeV is higher (more than 70 protons/cm/sup 2/ s), and the erosion rate is higher (greater than 1.3 mm/My). /sup 10/Be, as a high energy product, is a very useful nuclide for helping to obtain the SCR spectral shape in the past. 23 refs., 3 figs., 1 tab.

  18. Infrared and visual lunar occultations measurements of stellar diameters and new binary stars detections at the Calar Alto 1.5m telescope

    E-Print Network [OSTI]

    O. Fors; A. Richichi; J. Nunez; A. Prades

    2004-02-03

    We present a program of routine lunar occultations, at optical and near-IR wavelengths, recently started at the 1.5m Spanish telescope at the Calar Alto Observatory. Both a CCD and an infrared array detector are used. The program is aimed mainly at the detection and investigation of binary systems, although results in other areas of stellar research are also anticipated. Occultations are reported for a total of 40 stars. Among these, SAO 164567, SAO 78258 and AG+24 788 have been discovered to be binaries, with projected separations as small as 0.006". Furthermore, binarity is suspected in the case of SAO 78119 and SAO 79251. Additionally, the angular diameter of the late-type giant 30 Psc and of the infrared star V349 Gem have been accurately measured, this latter for the first time. We finally evaluate the instrumentation performance in terms of limiting magnitude and angular resolution, and discuss applications to larger telescopes.

  19. TOWARDS ESTIMATING TOTAL ECONOMIC VALUE

    E-Print Network [OSTI]

    Bateman, Ian J.

    TOWARDS ESTIMATING TOTAL ECONOMIC VALUE OF FORESTS IN MEXICO by Neil Adger Katrina Brown Raffaello OF FORESTS IN MEXICO by Neil Adger Katrina Brown Raffaello Cervigni Dominic Moran Centre for Social and SEDESOL for their assistance whilst in Mexico, and David Pearce and Kerry Turner for comments on earlier

  20. ARTEMIS observations of lunar pick-up ions in the terrestrial magnetotail lobes

    E-Print Network [OSTI]

    California at Berkeley, University of

    . The entirety of lunar pick-up ion observations to date have occurred in the solar wind, where the combination of the IMF and large solar wind convection speed give rise to convection electric fields on the order of tens of surface constituents, and impact ionization from energetic plasma and incident micrometeorite bombardment

  1. NASA/TP-2005-213164 Managing Lunar and Mars Mission

    E-Print Network [OSTI]

    Rathbun, Julie A.

    NASA/TP-2005-213164 Managing Lunar and Mars Mission Radiation Risks Part I: Cancer Risks, Uncertainties, and Shielding Effectiveness Francis A. Cucinotta NASA Lyndon B. Johnson Space Center Houston Division Houston, Texas July 2005 #12;THE NASA STI PROGRAM OFFICE . . . IN PROFILE Since its founding, NASA

  2. GRAIL Gravity Observations of Lunar Volcanic Complexes Walter S. Kiefer1

    E-Print Network [OSTI]

    Kiefer, Walter S.

    GRAIL Gravity Observations of Lunar Volcanic Complexes Walter S. Kiefer1 , Patrick J. McGovern1 , Jeffrey C. Andrews-Hanna2 , James W. Head III3 , James G. Williams4 , Maria T. Zuber5 , and the GRAIL and Interior Labora- tory (GRAIL) mission markedly sharpened our view of the Moon's gravity [1]. The current

  3. Earth's Glow on the Young Moon: A Conjecture on the Lunar Farside Asymmetry

    E-Print Network [OSTI]

    Rhoads, James

    Earth's Glow on the Young Moon: A Conjecture on the Lunar Farside Asymmetry Arpita Roy & Jason of the Moon with the Earth" by Stigmatella aurantiaca Licensed under CC BY-SA 3.0 via Wikimedia Commons File:Tidal_locking_of_the_Moon_with_the_Earth Hypothesis: Moon formed from impact of Mars sized protoplanet, "Theia", with proto-earth Moon formed from

  4. An Introduction of Chinese Lunar Explorarion Program Z. Yue 1, 2, 3 , Z. Ouyang3

    E-Print Network [OSTI]

    Texas at San Antonio, University of

    An Introduction of Chinese Lunar Explorarion Program Z. Yue 1, 2, 3 , H. Xie2 , J. Liu3 , Z. Ouyang, TX 78249, U.S.A.,3 National Astronomical Observatories Chinese Academy of Sciences, Beijing, Beijing 100012, China., yuezongyu1980@163.com Background: In 1994, Chinese scientists from several institutions

  5. www.sea.co.uk a Cohort plc company Lunar Lander Science payload

    E-Print Network [OSTI]

    Anand, Mahesh

    www.sea.co.uk a Cohort plc company Lunar Lander Science payload Capability Instrument design and on planetary surfaces Heritage ExoMars Phase A/B (TAS-I) Payload operations scenarios EarthCARE BBR Prime market Requires in-flight operation before becoming acceptable to commercial customers ESA mission

  6. A stress interpretation scheme applied to lunar gravity and topography data

    E-Print Network [OSTI]

    A stress interpretation scheme applied to lunar gravity and topography data F. Chambat1 and B to be directly related to the deviatoric stresses without any rheological assumptions. In this approach a new set above the corresponding equipotential surfaces and (2) the stress difference. The method is applied

  7. American Institute of Aeronautics and Astronautics The Lunar Dust Problem: From Liability to Asset

    E-Print Network [OSTI]

    Taylor, Lawrence A.

    and researched processes on the Moon1-5 . The beaming of electrical power from lunar solar cells to LEO and Earth surfaces, such as solar cells; and 4) physiological effects on the tissue in human lungs. The chemical-30 nm) Fe0 particles, iron in its elemental form, concentrated especially in the fine, dusty fraction

  8. 2.10 A&GApril2011Vol.52 oon Zoo is an online lunar citizen

    E-Print Network [OSTI]

    Crawford, Ian

    2.10 A&GApril2011Vol.52 M oon Zoo is an online lunar citizen science project designed to address by the Citizen Science Alliance in a collection of online citizen science projects known as the Zooniverse independent observations. The Moon Zoo project The goal of Moon Zoo, like all other citizen science projects

  9. Estimating the frequency of extremely energetic solar events, based on solar, stellar, lunar, and terrestrial records

    E-Print Network [OSTI]

    Schrijver, Karel

    or less. [3] Solar events have an increasing potential to impact man- kind's technological infrastructureEstimating the frequency of extremely energetic solar events, based on solar, stellar, lunar powerful explosions on the Sun in the form of bright flares, intense storms of solar energetic particles

  10. Lunar impact flashes from Geminids, analysis of luminous efficiencies and the flux of large meteoroids on Earth

    E-Print Network [OSTI]

    Ortiz, Jose L; Morales, Nicolas; Santos-Sanz, Pablo; Aceituno, Francisco J

    2015-01-01

    We analyze lunar impact flashes recorded by our team during runs in December 2007, 2011, 2013 and 2014. In total, 12 impact flashes with magnitudes ranging between 7.1 and 9.3 in V band were identified. From these, 9 events could be linked to the Geminid stream. Using these observations the ratio of luminous energy emitted in the flashes with respect to the kinetic energy of the impactors for meteoroids of the Geminid stream is estimated. By making use of the known Geminids meteoroid flux on Earth we found this ratio to be 2.1x10$^{-3}$ on average. We compare this luminous efficiency with other estimations derived in the past for other meteoroid streams and also compare it with other estimations that we present here for the first time by making use of crater diameter measurements. We think that the luminous efficiency has to be revised downward, not upward, at least for sporadic impacts. This implies an increase in the influx of kilogram-sized and larger bodies on Earth that has been derived thus far through ...

  11. MUJERES ( * ) TOTAL BIOLOGA 10 19

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    mujeres que han leído tesis en la UAM en el año 2007 Fuente: Centro de Posgrado de la UAM, a 31 de Diciembre de 2007 FILOSOFÍA Y LETRAS MEDICINA PSICOLOGÍA TOTAL TESIS LEIDAS Y APROBADAS EN EL A?O 2007 EN LA UAM CIENCIAS CIENCIAS ECON?MICAS Y EMPRESARIALES DERECHO ESCUELA POLIT?CNICA SUPERIOR Nº de tesis

  12. Total Energy Outcome City Pilot

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitle XVIIof EnergyofTotal Energy

  13. Experimental and Monte Carlo evaluation of Eclipse treatment planning system for effects on dose distribution of the hip prostheses

    SciTech Connect (OSTI)

    atl?, Serap; Tan?r, Gne?

    2013-10-01

    The present study aimed to investigate the effects of titanium, titanium alloy, and stainless steel hip prostheses on dose distribution based on the Monte Carlo simulation method, as well as the accuracy of the Eclipse treatment planning system (TPS) at 6 and 18 MV photon energies. In the present study the pencil beam convolution (PBC) method implemented in the Eclipse TPS was compared to the Monte Carlo method and ionization chamber measurements. The present findings show that if high-Z material is used in prosthesis, large dose changes can occur due to scattering. The variance in dose observed in the present study was dependent on material type, density, and atomic number, as well as photon energy; as photon energy increased back scattering decreased. The dose perturbation effect of hip prostheses was significant and could not be predicted accurately by the PBC method for hip prostheses. The findings show that for accurate dose calculation the Monte Carlo-based TPS should be used in patients with hip prostheses.

  14. A Circumbinary Planet in Orbit Around the Short-Period White-Dwarf Eclipsing Binary RR Cae

    E-Print Network [OSTI]

    Qian, S -B; Zhu, L -Y; Dai, Z -B; Lajus, E Fernandez; Baume, G L

    2012-01-01

    By using six new determined mid-eclipse times together with those collected from the literature, we found that the Observed-Calculated (O-C) curve of RR Cae shows a cyclic change with a period of 11.9 years and an amplitude of 14.3s, while it undergoes an upward parabolic variation (revealing a long-term period increase at a rate of dP/dt =+4.18(+-0.20)x10^(-12). The cyclic change was analyzed for the light-travel time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M_3*sin i' = 4.2(+-0.4) M_{Jup} suggesting that it is a circumbinary giant planet when its orbital inclination is larger than 17.6 degree. The orbital separation of the circumbinary planet from the central eclipsing binary is about 5.3(+-0.6)AU. The period increase is opposite to the changes caused by angular momentum loss via magnetic braking or/and gravitational radiation, nor can it be explained by the mass transfer between both components because of its detached configur...

  15. First lunar wake passage of ARTEMIS: Discrimination of wake effects and solar wind fluctuations by 3D hybrid simulations

    E-Print Network [OSTI]

    California at Berkeley, University of

    with the solar wind were found by the IMP-1 satellite (Ness et al., 1964; Ness, 1965). Later, the magnetic field the existence of a lunar wake (Ness et al., 1967). This pioneering mission revealed the low electric

  16. TotalView Training 2015

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:FebruaryEIA's Today8Topo II: AnUsersTotalView

  17. Total Adjusted Sales of Kerosene

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths30,2,8, 2015End Use: Total

  18. Total Imports of Residual Fuel

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths30,2,8,Product: Total CrudeMay-15

  19. WARM SPITZER AND PALOMAR NEAR-IR SECONDARY ECLIPSE PHOTOMETRY OF TWO HOT JUPITERS: WASP-48b AND HAT-P-23b

    E-Print Network [OSTI]

    O'Rourke, Joseph G.

    We report secondary eclipse photometry of two hot Jupiters, WASP-48b and HAT-P-23b, at 3.6 and 4.5 ?m taken with the InfraRed Array Camera aboard the Spitzer Space Telescope during the warm Spitzer mission and in the H and ...

  20. Discovery of an eclipsing X-ray binary with a 32.69 hour period in M101: an analog of Her X-1 or LMC X-4?

    E-Print Network [OSTI]

    Jifeng Liu; Rosanne di Stefano; Jeffrey McClintock; Albert Kong; Joel Bregman; Kip Kuntz

    2006-08-16

    We report the discovery of an eclipsing X-ray binary in M101, the first such system to be discovered outside the Local Group. Based on a sequence of 25 Chandra observations that sample a wide range of orbital phases, we find a period of 32.688 $\\pm$ 0.002 hours, which we interpret as an orbital period. The folded light curve exhibits an eclipse lasting about 8 hours, suggesting a compact orbit in an nearly edge-on configuration. The X-ray binary has an average luminosity of $L_X(0.3-8 {\\rm keV}) \\approx 1.3\\times10^{38}$ erg/sec, with only one out of the 25 observations significantly lower in flux than the average light curve.The presence of the eclipse and the $\\sim$ 1.4-day orbital period suggests that this source is an analog of the well studied eclipsing X-ray binary pulsars Her X-1 or LMC X-4. Combining the Chandra data and the HST ACS/WFC images, we have identified several possible optical counterparts, including an O5-O3 star with V = 25.0. Follow-up optical monitoring observations should be able to identify the donor and further constrain the orbital properties.

  1. arXiv:1106.3570v2[astro-ph.SR]9Sep2011 The Palomar Transient Factory Orion Project: Eclipsing Binaries and Young

    E-Print Network [OSTI]

    Goddard III, William A.

    arXiv:1106.3570v2[astro-ph.SR]9Sep2011 The Palomar Transient Factory Orion Project: Eclipsing Propulsion Laboratory, Pasadena, CA 91125, USA #12; 3 ABSTRACT The Palomar Transient Factory (PTF) Orion the PTF camera installed at the Palomar 48-inch telescope, 40 nights were dedicated in 2009 December

  2. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,602 1,397...

  3. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All...

  4. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 2,037...

  5. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,870 1,276...

  6. Webtrends Archives by Fiscal Year EERE Totals

    Broader source: Energy.gov [DOE]

    Historical EERE office total reports include only Webtrends archives by fiscal year. EERE total reports dating after FY11 can be accessed in EERE's Google Analytics account.

  7. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 636 580 46 1 Q 114.0...

  8. Total quality management implementation guidelines

    SciTech Connect (OSTI)

    Not Available

    1993-12-01

    These Guidelines were designed by the Energy Quality Council to help managers and supervisors in the Department of Energy Complex bring Total Quality Management to their organizations. Because the Department is composed of a rich mixture of diverse organizations, each with its own distinctive culture and quality history, these Guidelines are intended to be adapted by users to meet the particular needs of their organizations. For example, for organizations that are well along on their quality journeys and may already have achieved quality results, these Guidelines will provide a consistent methodology and terminology reference to foster their alignment with the overall Energy quality initiative. For organizations that are just beginning their quality journeys, these Guidelines will serve as a startup manual on quality principles applied in the Energy context.

  9. SU-E-T-585: Commissioning of Electron Monte Carlo in Eclipse Treatment Planning System for TrueBeam

    SciTech Connect (OSTI)

    Yang, X; Lasio, G; Zhou, J; Lin, M; Yi, B; Guerrero, M

    2014-06-01

    Purpose: To commission electron Monte Carlo (eMC) algorithm in Eclipse Treatment Planning System (TPS) for TrueBeam Linacs, including the evaluation of dose calculation accuracy for small fields and oblique beams and comparison with the existing eMC model for Clinacs. Methods: Electron beam percent-depth-dose (PDDs) and profiles with and without applicators, as well as output factors, were measured from two Varian TrueBeam machines. Measured data were compared against the Varian TrueBeam Representative Beam Data (VTBRBD). The selected data set was transferred into Eclipse for beam configuration. Dose calculation accuracy from eMC was evaluated for open fields, small cut-out fields, and oblique beams at different incident angles. The TrueBeam data was compared to the existing Clinac data and eMC model to evaluate the differences among Linac types. Results: Our measured data indicated that electron beam PDDs from our TrueBeam machines are well matched to those from our Varian Clinac machines, but in-air profiles, cone factors and open-filed output factors are significantly different. The data from our two TrueBeam machines were well represented by the VTBRBD. Variations of TrueBeam PDDs and profiles were within the 2% /2mm criteria for all energies, and the output factors for fields with and without applicators all agree within 2%. Obliquity factor for two clinically relevant applicator sizes (1010 and 1515 cm{sup 2}) and three oblique angles (15, 30, and 45 degree) were measured for nominal R100, R90, and R80 of each electron beam energy. Comparisons of calculations using eMC of obliquity factors and cut-out factors versus measurements will be presented. Conclusion: eMC algorithm in Eclipse TPS can be configured using the VTBRBD. Significant differences between TrueBeam and Clinacs were found in in-air profiles and open field output factors. The accuracy of the eMC algorithm was evaluated for a wide range of cut-out factors and oblique incidence.

  10. Status Report and Future Prospects on LUNASKA Lunar Observations with ATCA

    E-Print Network [OSTI]

    C. W. James; R. D. Ekers; J. Alvarez-Muniz; R. J. Protheroe; R. A. McFadden; C. J. Phillips; P. Roberts

    2008-11-07

    LUNASKA (Lunar UHE Neutrino Astrophysics with the Square Kilometre Array) is a theoretical and experimental project developing the lunar Cherenkov technique for the next generation of giant radio-telescope arrays. Here we report on a series of observations with ATCA (the Australia Telescope Compact Array). Our current observations use three of the six 22m ATCA antennas with a 600 MHz bandwidth at 1.2-1.8 GHz, analogue dedispersion filters to correct for the typical night-time ionospheric dispersion, and state-of-the-art 2 GHz FPGA-based digital pulse detection hardware. We have observed so as to maximise the UHE neutrino sensitivity in the region surrounding the galactic centre and to Centaurus A, to which current limits on the highest-energy neutrinos are relatively weak.

  11. Status Report and Future Prospects on LUNASKA Lunar Observations with ATCA

    E-Print Network [OSTI]

    James, C W; Alvarez-Muiz, J; Protheroe, R J; McFadden, R A; Phillips, C J; Roberts, P

    2008-01-01

    LUNASKA (Lunar UHE Neutrino Astrophysics with the Square Kilometre Array) is a theoretical and experimental project developing the lunar Cherenkov technique for the next generation of giant radio-telescope arrays. Here we report on a series of observations with ATCA (the Australia Telescope Compact Array). Our current observations use three of the six 22m ATCA antennas with a 600 MHz bandwidth at 1.2-1.8 GHz, analogue dedispersion filters to correct for the typical night-time ionospheric dispersion, and state-of-the-art 2 GHz FPGA-based digital pulse detection hardware. We have observed so as to maximise the UHE neutrino sensitivity in the region surrounding the galactic centre and to Centaurus A, to which current limits on the highest-energy neutrinos are relatively weak.

  12. A reliability and mass perspective of SP-100 Stirling cycle lunar-base powerplant designs

    SciTech Connect (OSTI)

    Bloomfield, H.S.

    1991-06-01

    The purpose was to obtain reliability and mass perspectives on selection of space power system conceptual designs based on SP-100 reactor and Stirling cycle power-generation subsystems. The approach taken was to: (1) develop a criterion for an acceptable overall reliability risk as a function of the expected range of emerging technology subsystem unit reliabilities; (2) conduct reliability and mass analyses for a diverse matrix of 800-kWe lunar-base design configurations employing single and multiple powerplants with both full and partial subsystem redundancy combinations; and (3) derive reliability and mass perspectives on selection of conceptual design configurations that meet an acceptable reliability criterion with the minimum system mass increase relative to reference powerplant design. The developed perspectives provided valuable insight into the considerations required to identify and characterize high-reliability and low-mass lunar-base powerplant conceptual design.

  13. Jet-induced cratering of a granular surface with application to lunar spaceports

    E-Print Network [OSTI]

    Philip T. Metzger; Christopher D. Immer; Carly M. Donahue; Bruce M. Vu; Robert C. Latta III; Matthew Deyo-Svendsen

    2009-06-01

    The erosion of lunar soil by rocket exhaust plumes is investigated experimentally. This has identified the diffusion-driven flow in the bulk of the sand as an important but previously unrecognized mechanism for erosion dynamics. It has also shown that slow regime cratering is governed by the recirculation of sand in the widening geometry of the crater. Scaling relationships and erosion mechanisms have been characterized in detail for the slow regime. The diffusion-driven flow occurs in both slow and fast regime cratering. Because diffusion-driven flow had been omitted from the lunar erosion theory and from the pressure cratering theory of the Apollo and Viking era, those theories cannot be entirely correct.

  14. An investigation of soil-tool interaction theories as they apply to a Lunar soil simulant

    E-Print Network [OSTI]

    Willman, Brian Michael

    1992-01-01

    be met given certain groundrules, guidelines and assumptions. Even so, there has been a wide variety of excavation systems proposed, each having their important design criterion. Proposed excavating systems have varied from a 60 lb-mass dragline bucket.... This was originally done using a lunar simulant and the testing of a microrobot and dragline bucket (Bernold 1989). In this research, a presentation of some soil-tool interaction theories (Sohne 1956) (Balovnev 1983) was made, but they were not used to predict...

  15. Total termination of term rewriting is undecidable

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Total termination of term rewriting is undecidable Hans Zantema Utrecht University, Department Usually termination of term rewriting systems (TRS's) is proved by means of a monotonic well­founded order. If this order is total on ground terms, the TRS is called totally terminating. In this paper we prove that total

  16. Total-derivative supersymmetry breaking

    SciTech Connect (OSTI)

    Haba, Naoyuki; Uekusa, Nobuhiro

    2010-05-15

    On an interval compactification in supersymmetric theory, boundary conditions for bulk fields must be treated carefully. If they are taken arbitrarily following the requirement that a theory is supersymmetric, the conditions could give redundant constraints on the theory. We construct a supersymmetric action integral on an interval by introducing brane interactions with which total-derivative terms under the supersymmetry transformation become zero due to a cancellation. The variational principle leads equations of motion and also boundary conditions for bulk fields, which determine boundary values of bulk fields. By estimating mass spectrum, spontaneous supersymmetry breaking in this simple setup can be realized in a new framework. This supersymmetry breaking does not induce a massless R axion, which is favorable for phenomenology. It is worth noting that fermions in hyper-multiplet, gauge bosons, and the fifth-dimensional component of gauge bosons can have zero-modes (while the other components are all massive as Kaluza-Klein modes), which fits the gauge-Higgs unification scenarios.

  17. Eclipsing Binaries in the OGLE Variable Star Catalogs.V. Long-Period Beta Lyrae-type Systems in the Small Magellanic Cloud and the PLC-beta Relation

    E-Print Network [OSTI]

    Slavek M. Rucinski; Carla Maceroni

    2000-06-16

    Thirty eight long-period (P>10 days), apparently contact binary stars discovered by the OGLE-II project in the SMC appear to be Beta Lyrae-type systems with ellipsoidal variations of the cool components dominating over eclipse effects in the systemic light variations and in the total luminosity. A new period-luminosity- color (PLC) relation has been established for these systems; we call it the PLC-beta relation, to distinguish it from the Cepheid relation. Two versions of the PLC-beta relation - based on the (B-V)0 or (V-I)0 color indices - have been calibrated for 33 systems with (V-I)0>0.25 spanning the orbital period range of 11 to 181 days. The relations can provide maximum-light, absolute-magnitude estimates accurate to epsilon-M_V~0.35 mag. within the approximate range -3PLC-beta relation can offer an auxiliary and entirely independent method of distance determination to nearby stellar systems rich in massive stars. The sample of the long-period Beta Lyrae systems in the SMC analyzed in this paper is currently the best defined and uniform known sequence of such binaries.

  18. The rationale/benefits of nuclear thermal rocket propulsion for NASA's lunar space transportation system

    SciTech Connect (OSTI)

    Borowski, S.K.

    1994-09-01

    The solid core nuclear thermal rocket (NTR) represents the next major evolutionary step in propulsion technology. With its attractive operating characteristics, which include high specific impulse (approximately 850-1000 s) and engine thrust-to-weight (approximately 4-20), the NTR can form the basis for an efficient lunar space transportation system (LTS) capable of supporting both piloted and cargo missions. Studies conducted at the NASA Lewis Research Center indicate that an NTR-based LTS could transport a fully-fueled, cargo-laden, lunar excursion vehicle to the Moon, and return it to low Earth orbit (LEO) after mission completion, for less initial mass in LEO than an aerobraked chemical system of the type studied by NASA during its '90-Day Study.' The all-propulsive NTR-powered LTS would also be 'fully reusable' and would have a 'return payload' mass fraction of approximately 23 percent--twice that of the 'partially reusable' aerobraked chemical system. Two NTR technology options are examined--one derived from the graphite-moderated reactor concept developed by NASA and the AEC under the Rover/NERVA (Nuclear Engine for Rocket Vehicle Application) programs, and a second concept, the Particle Bed Reactor (PBR). The paper also summarizes NASA's lunar outpost scenario, compares relative performance provided by different LTS concepts, and discusses important operational issues (e.g., reusability, engine 'end-of life' disposal, etc.) associated with using this important propulsion technology.

  19. NTR-Enhanced Lunar-Base Supply using Existing Launch Fleet Capabilities

    SciTech Connect (OSTI)

    John D. Bess; Emily Colvin; Paul G. Cummings

    2009-06-01

    During the summer of 2006, students at the Center for Space Nuclear Research sought to augment the current NASA lunar exploration architecture with a nuclear thermal rocket (NTR). An additional study investigated the possible use of an NTR with existing launch vehicles to provide 21 metric tons of supplies to the lunar surface in support of a lunar outpost. Current cost estimates show that the complete mission cost for an NTR-enhanced assembly of Delta-IV and Atlas V vehicles may cost 47-86% more than the estimated Ares V launch cost of $1.5B; however, development costs for the current NASA architecture have not been assessed. The additional cost of coordinating the rendezvous of four to six launch vehicles with an in-orbit assembly facility also needs more thorough analysis and review. Future trends in launch vehicle use will also significantly impact the results from this comparison. The utility of multiple launch vehicles allows for the development of a more robust and lower risk exploration architecture.

  20. A new HW Vir binary from the Palomar Transient Factory: PTF1 J072455.75+125300.3 - An eclipsing subdwarf B binary with a M-star companion

    E-Print Network [OSTI]

    Schindewolf, M; Heber, U; Drechsel, H; Schaffenroth, V; Kuper, T; Prince, T

    2015-01-01

    We report the discovery of an eclipsing binary -- PTF1 J072456$+$125301-- composed of a subdwarf B (sdB) star ($g'=17.2^m$) with a faint companion. Subdwarf B stars are core helium-burning stars, which can be found on the extreme horizontal branch. About half of them reside in close binary systems, but few are known to be eclipsing, for which fundamental stellar parameters can be derived.\

  1. Nocturnal light and lunar cycle effects on diel migration of micronekton Kelly J. Benoit-Bird,a,* Whitlow W. L. Au,b and Daniel W. Wisdoma

    E-Print Network [OSTI]

    Benoit-Bird, Kelly J.

    Nocturnal light and lunar cycle effects on diel migration of micronekton Kelly J. Benoit Abstract The roles of nocturnal light and lunar phase in the diel migration of micronekton from a nearshore. However, this movement was not enough to compensate for observed changes in light, and at night animals

  2. Lunar Rover Solar Panel MountTeam Members: Tian Le, Tudor Boiangiu, Jeremy Chan, James Haensel To develop a mechanized mount for a solar panel to

    E-Print Network [OSTI]

    Sun, Yu

    Lunar Rover Solar Panel MountTeam Members: Tian Le, Tudor Boiangiu, Jeremy Chan, James Haensel To develop a mechanized mount for a solar panel to be mounted on a lunar rover. Must be: capable of orienting panel towards sun reside on mast extending vertically from rover capable of unfurling solar

  3. GEOPHYSICAL RESEARCHLETTERS, VOL. 26, NO. 9, PAGES I 187-1190,MAY 1, 1999 Illumination conditions at the lunar south pole

    E-Print Network [OSTI]

    Spudis, Paul D.

    conditions at the lunar south pole D. Ben J. Bussey ESA/ESTEC, Noordwijk, The Netherlands Paul D. Spudis shadowedregions at the lunar poles. Clementine, by providing the first con- tiguouscoverageof the Moon, hasenabledthe productionof an illumination map of the south pole. This map showsthe extent of the areas

  4. Total cost model for making sourcing decisions

    E-Print Network [OSTI]

    Morita, Mark, M.B.A. Massachusetts Institute of Technology

    2007-01-01

    This thesis develops a total cost model based on the work done during a six month internship with ABB. In order to help ABB better focus on low cost country sourcing, a total cost model was developed for sourcing decisions. ...

  5. Total System Performance Assessment Peer Review Panel

    Broader source: Energy.gov [DOE]

    Total System Performance Assessment (TSPA) Peer Review Panel for predicting the performance of a repository at Yucca Mountain.

  6. New Ccd Photometric Observations Of W-Uma Eclipsing Binary Nsv 5904 Using The 1.88-M Kottamia Telescope, Egypt

    E-Print Network [OSTI]

    Essam, A; Haroon, A A; Hamdy, M A; Ali, G B; Ismail, H A; Selim, I M; Azzam, Y A; Elnagahy, F I

    2012-01-01

    New BVR light curves of the eclipsing binary system NSV 5904 have been constructed based on CCD observations obtained using 1.88-m telescope of Kottamia observatory during the phase of telescope testing and adjusting its optical quality on May, 2009. New times of minima and epoch have been determined from these light curves. Using the Binary Maker 3.0 (BM3) package, a preliminary determination of the photometric orbital and physical parameters of NSV 5904 are given.

  7. 8, 31433162, 2008 Total ozone over

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ACPD 8, 31433162, 2008 Total ozone over oceanic regions M. C. R. Kalapureddy et al. Title Page Chemistry and Physics Discussions Total column ozone variations over oceanic region around Indian sub3162, 2008 Total ozone over oceanic regions M. C. R. Kalapureddy et al. Title Page Abstract Introduction

  8. 5, 1133111375, 2005 NH total ozone

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ACPD 5, 1133111375, 2005 NH total ozone increase S. Dhomse et al. Title Page Abstract Introduction On the possible causes of recent increases in NH total ozone from a statistical analysis of satellite data from License. 11331 #12;ACPD 5, 1133111375, 2005 NH total ozone increase S. Dhomse et al. Title Page Abstract

  9. 6, 39133943, 2006 Svalbard total ozone

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 6, 39133943, 2006 Svalbard total ozone C. Vogler et al. Title Page Abstract Introduction Discussions Re-evaluation of the 19501962 total ozone record from Longyearbyen, Svalbard C. Vogler 1 , S. Br total ozone C. Vogler et al. Title Page Abstract Introduction Conclusions References Tables Figures Back

  10. Total Algorithms \\Lambda Gerard Tel y

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Total Algorithms \\Lambda Gerard Tel y Department of Computer Science, University of Utrecht, P and February 1993 Abstract We define the notion of total algorithms for networks of processes. A total algorithm enforces that a ``decision'' is taken by a subset of the processes, and that participation of all

  11. Seasonal persistence of midlatitude total ozone anomalies

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    Seasonal persistence of midlatitude total ozone anomalies Article Published Version Fioletov, V. E. and Shepherd, T. G. (2003) Seasonal persistence of midlatitude total ozone anomalies. Geophysical Research persistence of midlatitude total ozone anomalies Vitali E. Fioletov Meteorological Service of Canada, Toronto

  12. Lunar Outgassing, Transient Phenomena & the Return to the Moon, II: Predictions and Tests for Outgassing/Regolith Interactions

    E-Print Network [OSTI]

    Crotts, Arlin P S

    2009-01-01

    We follow Paper I with predictions of how gas leaking through the lunar surface could influence the regolith, as might be observed via optical Transient Lunar Phenomena (TLPs) and related effects. We touch on several processes, but concentrate on low and high flow rate extremes, perhaps the most likely. We model explosive outgassing for the smallest gas overpressure at the regolith base that releases the regolith plug above it. This disturbance's timescale and affected area are consistent with observed TLPs; we also discuss other effects. For slow flow, escape through the regolith is prolonged by low diffusivity. Water, found recently in deep magma samples, is unique among candidate volatiles, capable of freezing between the regolith base and surface, especially near the lunar poles. For major outgassing sites, we consider the possible accumulation of water ice. Over geological time ice accumulation can evolve downward through the regolith. Depending on gases additional to water, regolith diffusivity might be...

  13. LUNAR DUST GRAIN CHARGING BY ELECTRON IMPACT: COMPLEX ROLE OF SECONDARY ELECTRON EMISSIONS IN SPACE ENVIRONMENTS

    SciTech Connect (OSTI)

    Abbas, M. M.; Craven, P. D.; LeClair, A. C.; Spann, J. F.; Tankosic, D.

    2010-08-01

    Dust grains in various astrophysical environments are generally charged electrostatically by photoelectric emissions with radiation from nearby sources, or by electron/ion collisions by sticking or secondary electron emissions (SEEs). The high vacuum environment on the lunar surface leads to some unusual physical and dynamical phenomena involving dust grains with high adhesive characteristics, and levitation and transportation over long distances. Knowledge of the dust grain charges and equilibrium potentials is important for understanding a variety of physical and dynamical processes in the interstellar medium, and heliospheric, interplanetary/planetary, and lunar environments. It has been well recognized that the charging properties of individual micron-/submicron-size dust grains are expected to be substantially different from the corresponding values for bulk materials. In this paper, we present experimental results on the charging of individual 0.2-13 {mu}m size dust grains selected from Apollo 11 and 17 dust samples, and spherical silica particles by exposing them to mono-energetic electron beams in the 10-200 eV energy range. The dust charging process by electron impact involving the SEEs discussed is found to be a complex charging phenomenon with strong particle size dependence. The measurements indicate substantial differences between the polarity and magnitude of the dust charging rates of individual small-size dust grains, and the measurements and model properties of corresponding bulk materials. A more comprehensive plan of measurements of the charging properties of individual dust grains for developing a database for realistic models of dust charging in astrophysical and lunar environments is in progress.

  14. New determination of the size and bulk density of the binary asteroid 22 Kalliope from observations of mutual eclipses

    E-Print Network [OSTI]

    P. Descamps; F. Marchis; J. Pollock; J. Berthier; F. Vachier; M. Birlan; M. Kaasalainen; A. W. Harris; M. Wong; W. Romanishin; E. M. Cooper; K. A. Kettner; P. Wiggins; A. Kryszczynska; M. Polinska; J. -F. Colliac; A. Devyatkin; I. Verestchagina; D. Gorshanov

    2008-03-13

    In 2007, the M-type binary asteroid 22 Kalliope reached one of its annual equinoxes. As a consequence, the orbit plane of its small moon, Linus, was aligned closely to the Sun's line of sight, giving rise to a mutual eclipse season. A dedicated international campaign of photometric observations, based on amateur-professional collaboration, was organized and coordinated by the IMCCE in order to catch several of these events. The set of the compiled observations is released in this work. We developed a relevant model of these events, including a topographic shape model of Kalliope refined in the present work, the orbit solution of Linus as well as the photometric effect of the shadow of one component falling on the other. By fitting this model to the only two full recorded events, we derived a new estimation of the equivalent diameter of Kalliope of 166.2+/-2.8km, 8% smaller than its IRAS diameter. As to the diameter of Linus, considered as purely spherical, it is estimated to 28+/-2 km. This substantial "shortening" of Kalliope gives a bulk density of 3.35+/-0.33g/cm3, significantly higher than past determinations but more consistent with its taxonomic type. Some constraints can be inferred on the composition.

  15. THE SDSS-HET SURVEY OF KEPLER ECLIPSING BINARIES: SPECTROSCOPIC DYNAMICAL MASSES OF THE KEPLER-16 CIRCUMBINARY PLANET HOSTS

    SciTech Connect (OSTI)

    Bender, Chad F.; Mahadevan, Suvrath; Deshpande, Rohit; Wright, Jason T.; Roy, Arpita; Terrien, Ryan C.; Sigurdsson, Steinn; Ramsey, Lawrence W.; Schneider, Donald P.; Fleming, Scott W., E-mail: cbender@psu.edu [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA-16802 (United States)

    2012-06-01

    We have used high-resolution spectroscopy to observe the Kepler-16 eclipsing binary as a double-lined system and measure precise radial velocities for both stellar components. These velocities yield a dynamical mass ratio of q = 0.2994 {+-} 0.0031. When combined with the inclination, i 90.{sup 0}3401{sup +0.0016}{sub -0.0019}, measured from the Kepler photometric data by Doyle et al. (D11), we derive dynamical masses for the Kepler-16 components of M{sub A} = 0.654 {+-} 0.017 M{sub Sun} and M{sub B} = 0.1959 {+-} 0.0031 M{sub Sun }, a precision of 2.5% and 1.5%, respectively. Our results confirm at the {approx}2% level the mass-ratio derived by D11 with their photometric-dynamical model (PDM), q = 0.2937 {+-} 0.0006. These are among the most precise spectroscopic dynamical masses ever measured for low-mass stars and provide an important direct test of the results from the PDM technique.

  16. Efficiency of mass transfer in massive close binaries, Tests from double-lined eclipsing binaries in the SMC

    E-Print Network [OSTI]

    S. E. de Mink; O. R. Pols; R. W. Hilditch

    2007-03-19

    One of the major uncertainties in close binary evolution is the efficiency of mass transfer beta: the fraction of transferred mass that is accreted by a secondary star. We attempt to constrain the mass-transfer efficiency for short-period massive binaries undergoing case A mass transfer. We present a grid of about 20,000 detailed binary evolution tracks with primary masses 3.5-35 Msun, orbital periods 1-5 days at a metallicity Z=0.004, assuming both conservative and non-conservative mass transfer. We perform a systematic comparison, using least-squares fitting, of the computed models with a sample of 50 double-lined eclipsing binaries in the Small Magellanic Cloud, for which fundamental stellar parameters have been determined. About 60% of the systems are currently undergoing slow mass transfer. In general we find good agreement between our models and the observed detached systems. However, for many of the semi-detached systems the observed temperature ratio is more extreme than our models predict. For the 17 semi-detached systems that we are able to match, we find a large spread in the best fitting mass-transfer efficiency; no single value of beta can explain all systems. We find a hint that initially wider systems tend to fit better to less conservative models. We show the need for more accurate temperature determinations and we find that determinations of surface abundances of nitrogen and carbon can potentially constrain the mass-transfer efficiency further.

  17. Impact of atmospheric refraction: how deeply can we probe exo-earth's atmospheres during primary eclipse observations?

    SciTech Connect (OSTI)

    Btrmieux, Yan; Kaltenegger, Lisa

    2014-08-10

    Most models used to predict or fit exoplanet transmission spectra do not include all the effects of atmospheric refraction. Namely, the angular size of the star with respect to the planet can limit the lowest altitude, or highest density and pressure, probed during primary eclipses as no rays passing below this critical altitude can reach the observer. We discuss this geometrical effect of refraction for all exoplanets and tabulate the critical altitude, density, and pressure for an exoplanet identical to Earth with a 1 bar N{sub 2}/O{sub 2} atmosphere as a function of both the incident stellar flux (Venus, Earth, and Mars-like) at the top of the atmosphere and the spectral type (O5-M9) of the host star. We show that such a habitable exo-Earth can be probed to a surface pressure of 1 bar only around the coolest stars. We present 0.4-5.0 ?m model transmission spectra of Earth's atmosphere viewed as a transiting exoplanet, and show how atmospheric refraction modifies the transmission spectrum depending on the spectral type of the host star. We demonstrate that refraction is another phenomenon that can potentially explain flat transmission spectra over some spectral regions.

  18. Total Space Heating Water Heating Cook-

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    2003 Total Fuel Oil Consumption (million gallons) Fuel Oil Energy Intensity (gallonssquare foot) Energy Information Administration 2003 Commercial Buildings Energy Consumption...

  19. Generalized Gravitational Entropy from Total Derivative Action

    E-Print Network [OSTI]

    Dong, Xi

    2015-01-01

    We investigate the generalized gravitational entropy from total derivative terms in the gravitational action. Following the method of Lewkowycz and Maldacena, we find that the generalized gravitational entropy from total derivatives vanishes. We compare our results with the work of Astaneh, Patrushev, and Solodukhin. We find that if total derivatives produced nonzero entropy, the holographic and the field-theoretic universal terms of entanglement entropy would not match. Furthermore, the second law of thermodynamics could be violated if the entropy of total derivatives did not vanish.

  20. Design Storm for Total Retention.pdf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    endorse the viewpoint of a publication or guarantee its technical correctness. Title: Design Storm for "Total Retention" under Individual Permit, Poster, Individual Permit for...

  1. Limit on UHE Neutrino Flux from the Parkes Lunar Radio Cherenkov Experiment

    E-Print Network [OSTI]

    C. W. James; R. M. Crocker; R. D. Ekers; T. H. Hankins; J. D. O'Sullivan; R. J. Protheroe

    2007-05-14

    The first search for ultra-high energy (UHE) neutrinos using a radio telescope was conducted by Hankins, Ekers and O'Sullivan (1996). This was a search for nanosecond duration radio Cherenkov pulses from electromagnetic cascades initiated by ultra-high energy (UHE) neutrino interactions in the lunar regolith, and was made using a broad-bandwidth receiver fitted to the Parkes radio telescope, Australia. At the time, no simulations were available to convert the null result into a neutrino flux limit. Since then, similar experiments at Goldstone, USA, and Kalyazin, Russia, have also recorded null results, and computer simulations have been used to model the experimental sensitivities of these two experiments and put useful limits on the UHE neutrino flux. Proposed future experiments include the use of broad-bandwidth receivers, making the sensitivity achieved by the Parkes experiment highly relevant to the future prospects of this field. We have therefore calculated the effective aperture for the Parkes experiment and found that when pointing at the lunar limb, the effective aperture at all neutrino energies was superior to single-antenna, narrow-bandwidth experiments, and that the detection threshold was comparable to that of the double-antenna experiment at Goldstone. However, because only a small fraction of the observing time was spent pointing the limb, the Parkes experiment places only comparatively weak limits on the UHE neutrino flux. Future efforts should use multiple telescopes and broad-bandwidth receivers.

  2. The sensitivity of the next generation of lunar Cherenkov observations to UHE neutrinos and cosmic rays

    E-Print Network [OSTI]

    C. W. James; R. J. Protheroe

    2008-02-25

    We present simulation results for the detection of ultra-high energy (UHE) cosmic ray (CR) and neutrino interactions in the Moon by radio-telescopes. We simulate the expected radio signal at Earth from such interactions, expanding on previous work to include interactions in the sub-regolith layer for single dish and multiple telescope systems. For previous experiments at Parkes, Goldstone, and Kalyazin we recalculate the sensitivity to an isotropic flux of UHE neutrinos. Our predicted sensitivity for future experiments using the Australia Telescope Compact Array (ATCA) and the Australian SKA Pathfinder (ASKAP) indicate these instruments will be able to detect the more optimistic UHE neutrino flux predictions, while the Square Kilometre Array (SKA) will also be sensitive to all bar one prediction of a diffuse `cosmogenic', or `GZK', neutrino flux. Current uncertainties concerning the structure and roughness of the lunar surface prevents an accurate calculation of the sensitivity of the lunar Cherenkov technique for UHE cosmic ray astronomy at high frequencies. However, below 200 MHz we find that the proposed SKA low-frequency aperture array should be able to detect events above 56 EeV at a rate about 30 times that of the current Pierre Auger Observatory. This would allow directional analysis of UHE cosmic rays, and investigation of correlations with putative cosmic ray source populations, to be conducted with very high statistics.

  3. LUNAR DUST GRAIN CHARGING BY ELECTRON IMPACT: DEPENDENCE OF THE SURFACE POTENTIAL ON THE GRAIN SIZE

    SciTech Connect (OSTI)

    Nemecek, Z.; Pavlu, J.; Safrankova, J.; Beranek, M.; Richterova, I.; Vaverka, J.; Mann, I.

    2011-09-01

    The secondary electron emission is believed to play an important role for the dust charging at and close to the lunar surface. However, our knowledge of emission properties of the dust results from model calculations and rather rare laboratory investigations. The present paper reports laboratory measurements of the surface potential on Lunar Highlands Type regolith simulants with sizes between 0.3 and 3 {mu}m in an electron beam with energy below 700 eV. This investigation is focused on a low-energy part, i.e., {<=}100 eV. We found that the equilibrium surface potential of this simulant does not depend on the grain size in our ranges of grain dimensions and the beam energies, however, it is a function of the primary electron beam energy. The measurements are confirmed by the results of the simulation model of the secondary emission from the spherical samples. Finally, we compare our results with those obtained in laboratory experiments as well as those inferred from in situ observations.

  4. PUBLISHED ONLINE: 17 FEBRUARY 2013 | DOI: 10.1038/NGEO1735 Water in lunar anorthosites and evidence for a wet

    E-Print Network [OSTI]

    Zhang, Youxue

    brought through solar- wind implantation24,7,10 and meteorite impacts2,3,7,11 , long after the primary interpreted to indicate a hybrid source of the water, that is, a combination of lunar mantle, comets and solar-wind lost its volatiles as it formed from ejecta of the impact of a Mars-size planetesimal with the proto

  5. Lunar Science as a Window into the Early Evolution of the Solar System and Conditions on the Early Earth

    E-Print Network [OSTI]

    Crawford, Ian

    Earth In collaboration with the Geological Society of London, and the UK node of the NASA Lunar Science into the Early Evolution of the Solar System and Conditions on the Early Earth. For the last 4.5 billion years the Earth and Moon have essentially comprised a binary planet system which is unique in the inner Solar

  6. PUBLISHED ONLINE: 14 OCTOBER 2012 | DOI: 10.1038/NGEO1601 Direct measurement of hydroxyl in the lunar

    E-Print Network [OSTI]

    Zhang, Youxue

    LETTERS PUBLISHED ONLINE: 14 OCTOBER 2012 | DOI: 10.1038/NGEO1601 Direct measurement of hydroxyl R. Rossman2 , John M. Eiler2 and Lawrence A. Taylor1 Remote sensing discoveries of hydroxyl suggested that hydroxyl in the lunar regolith can result from the implantation of hydrogen ions by the solar

  7. EXPOSURE IIISTORIES OF LUNAR METEORITES. K. Nishiizumit, 'Space Sciences Laboratory University of California, Berkeley, CA 94720-7450, USA.

    E-Print Network [OSTI]

    ) produced nuclides some lunar and Martian rneteorites contain nuclides produced by solar cosmic rays (SCR). Unraveling the complex history of these objects requires the measurement of at least four cosmogenic nuclides cosmogenic nuclides. These depth profiles included samples taken on a transect from the fusion crust

  8. Thickness of proximal ejecta from the Orientale Basin from Lunar Orbiter Laser Altimeter (LOLA) data: Implications for multi-ring basin formation

    E-Print Network [OSTI]

    Fassett, Caleb I.

    Quantifying the ejecta distribution around large lunar basins is important to understanding the origin of basin rings, the volume of the transient cavity, the depth of sampling, and the nature of the basin formation ...

  9. Enantioselective Total Synthesis of (?)-Acylfulvene and (?)- Irofulven

    E-Print Network [OSTI]

    Movassaghi, Mohammad

    We report our full account of the enantioselective total synthesis of (?)-acylfulvene (1) and (?)-irofulven (2), which features metathesis reactions for the rapid assembly of the molecular framework of these antitumor ...

  10. Total synthesis of cyclotryptamine and diketopiperazine alkaloids

    E-Print Network [OSTI]

    Kim, Justin, Ph. D. Massachusetts Institute of Technology

    2013-01-01

    I. Total Synthesis of the (+)-12,12'-Dideoxyverticillin A The fungal metabolite (+)-12,12'-dideoxyverticillin A, a cytotoxic alkaloid isolated from a marine Penicillium sp., belongs to a fascinating family of densely ...

  11. TotalView Parallel Debugger at NERSC

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The performance of the GUI can be greatly improved if used in conjunction with free NX software. The TotalView documentation web page is a good resource for learning more...

  12. Million Cu. Feet Percent of National Total

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    as known volumes of natural gas that were the result of leaks, damage, accidents, migration, andor blow down. Notes: Totals may not add due to independent rounding. Prices are...

  13. Total Energy Management in General Motors

    E-Print Network [OSTI]

    DeKoker, N.

    1979-01-01

    This paper presents an overview of General Motors' energy management program with special emphasis on energy conservation. Included is a description of the total program organization, plant guidelines, communication and motivation techniques...

  14. Total synthesis and study of myrmicarin alkaloids

    E-Print Network [OSTI]

    Ondrus, Alison Evelynn, 1981-

    2009-01-01

    I. Enantioselective Total Synthesis of Tricyclic Myrmicarin Alkaloids An enantioselective gram-scale synthesis of a key dihydroindolizine intermediate for the preparation of myrmicarin alkaloids is described. Key transformations ...

  15. An Unprecedented Constraint on Water Content in the Sunlit Lunar Exosphere Seen by Lunar-Based Ultraviolet Telescope of Chang'e-3 Mission

    E-Print Network [OSTI]

    Wang, J; Qiu, Y L; Meng, X M; Cai, H B; Cao, L; Deng, J S; Han, X H; Wei, J Y

    2015-01-01

    The content of $\\mathrm{OH/H_2O}$ molecules in the tenuous exosphere of the Moon is still an open issue at present. We here report an unprecedented upper limit of the content of the OH radicals, which is obtained from the in-situ measurements carried out \\rm by the Lunar-based Ultraviolet Telescope, a payload of Chinese Chang'e-3 mission. By analyzing the diffuse background in the images taken by the telescope, the column density and surface concentration of the OH radicals are inferred to be $<10^{11}\\ \\mathrm{cm^{-2}}$ and $<10^{4}\\ \\mathrm{cm^{-3}}$ (by assuming a hydrostatic equilibrium with a scale height of 100km), respectively, by assuming that the recorded background is fully contributed by their resonance fluorescence emission. The resulted concentration is lower than the previously reported value by about two orders of magnitude, and is close to the prediction of the sputtering model. In addition, the same measurements and method allow us to derive a surface concentration of $<10^{2}\\ \\math...

  16. Lunar Laser-Ranging Detection of Light-Speed Anisotropy and Gravitational Waves

    E-Print Network [OSTI]

    Reginald T Cahill

    2010-02-03

    The Apache Point Lunar Laser-ranging Operation (APOLLO), in NM, can detect photon bounces from retro-reflectors on the moon surface to 0.1ns timing resolution. This facility enables not only the detection of light speed anisotropy, which defines a local preferred frame of reference - only in that frame is the speed of light isotropic, but also fluctuations/turbulence (gravitational waves) in the flow of the dynamical 3-space relative to local systems/observers. So the APOLLO facility can act as an effective "gravitational wave" detector. A recently published small data set from November 5, 2007, is analysed to characterise both the average anisotropy velocity and the wave/turbulence effects. The results are consistent with some 13 previous detections, with the last and most accurate being from the spacecraft earth-flyby Doppler-shift NASA data.

  17. Dynamical, biological, and anthropic consequences of equal lunar and solar angular radii

    E-Print Network [OSTI]

    Balbus, Steven A

    2014-01-01

    The nearly equal lunar and solar angular sizes as subtended at the Earth is generally regarded as a coincidence. This is, however, an incidental consequence of the tidal forces from these bodies being comparable. Comparable magnitudes implies strong temporal modulation, as the forcing frequencies are nearly but not precisely equal. We suggest that on the basis of paleogeographic reconstructions, in the Devonian period, when the first tetrapods appeared on land, a large tidal range would accompany these modulated tides. This would have been conducive to the formation of a network of isolated tidal pools, lending support to A.S. Romer's classic idea that the evaporation of shallow pools was an evolutionary impetus for the development of chiridian limbs in aquatic tetrapodomorphs. Romer saw this as the reason for the existence of limbs, but strong selection pressure for terrestrial navigation would have been present even if the limbs were aquatic in origin. Since even a modest difference in the Moon's angular si...

  18. Absolute dimensions of eclipsing binaries. XXIV. The Be star system DW Carinae, a member of the open cluster Collinder 228

    E-Print Network [OSTI]

    John Southworth; J. V. Clausen

    2006-10-13

    DW Carinae is a close but detached early B-type eclipsing binary in the young open cluster Cr 228. We have measured accurate physical properties of its components (masses and radii to 1%) and used these to derive the age, metallicity and distance of Cr 228. The rotational velocities of both components of DW Car are high, so we have investigated the performance of double-Gaussian fitting, one- and two-dimensional cross-correlation and spectral disentangling for measuring radial velocities in the presence of strong line blending. Gaussian and cross-correlation analyses require substantial corrections for the effects of line blending, which are only partially successful for cross-correlation. Disentangling is to be preferred because it does not assume anything about the shapes of spectral lines, and is not significantly affected by blending. Complete Stromgren uvby light curves have been obtained and accurate radii have been measured from them using the Wilson-Devinney program, constrained by an accurate spectroscopic light ratio. The Teffs and reddening have been found from Stromgren photometric calibrations. The masses and radii of DW Car are M_A = 11.34 +/- 0.12 Msun, R_A = 4.558 +/- 0.045 Rsun, M_B = 10.63 +/- 0.14 Msun and R_B = 4.297 +/- 0.055 Rsun. The Teffs are Teff_A = 27900 +/- 1000 K and Teff_B = 26500 +/- 1000 K, and the reddening is E(b-y) = 0.18 +/- 0.02 mag. Using empirical bolometric corrections we find a distance modulus of 12.24 +/- 0.12 mag for DW Car, which is in agreement with, and more accurate than, literature values for Cr 228. A comparison between the properties of DW Car and theoretical predictions is undertaken in the mass--radius and mass--Teff diagrams. Good agreement is found for an age of about 6 Myr and a metal abundance of Z approx 0.01 (abridged).

  19. A strict test of stellar evolution models: The absolute dimensions of the massive benchmark eclipsing binary V578 Mon

    SciTech Connect (OSTI)

    Garcia, E. V.; Stassun, Keivan G.; Pavlovski, K.; Hensberge, H.; Chew, Y. Gmez Maqueo; Claret, A.

    2014-09-01

    We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P = 2.40848 days) in the star-forming region NGC 2244 of the Rosette Nebula. From the light curve analysis of 40 yr of photometry and the analysis of HERMES spectra, we find radii of 5.41 0.04 R{sub ?} and 4.29 0.05 R{sub ?}, and temperatures of 30,000 500 K and 25,750 435 K, respectively. We find that our disentangled component spectra for V578 Mon agree well with previous spectral disentangling from the literature. We also reconfirm the previous spectroscopic orbit of V578 Mon finding that masses of 14.54 0.08 M{sub ?} and 10.29 0.06 M{sub ?} are fully compatible with the new analysis. We compare the absolute dimensions to the rotating models of the Geneva and Utrecht groups and the models of the Granada group. We find that all three sets of models marginally reproduce the absolute dimensions of both stars with a common age within the uncertainty for gravity-effective temperature isochrones. However, there are some apparent age discrepancies for the corresponding mass-radius isochrones. Models with larger convective overshoot, >0.35, worked best. Combined with our previously determined apsidal motion of 0.07089{sub ?0.00013}{sup +0.00021} deg cycle{sup 1}, we compute the internal structure constants (tidal Love number) for the Newtonian and general relativistic contribution to the apsidal motion as log k {sub 2} = 1.975 0.017 and log k {sub 2} = 3.412 0.018, respectively. We find the relativistic contribution to the apsidal motion to be small, <4%. We find that the prediction of log k {sub 2,theo} = 2.005 0.025 of the Granada models fully agrees with our observed log k {sub 2}.

  20. The $?^* ?^*$ total cross section in NLA BFKL

    E-Print Network [OSTI]

    Dmitry Yu. Ivanov; Beatrice Murdaca; Alessandro Papa

    2014-11-16

    We study the $\\gamma^* \\gamma^*$ total cross section in the NLA BFKL approach. We have extracted the NLO corrections to the photon impact factor from two recent papers of Balitsky and Chirilli and Chirilli and Kovchegov and used them to build several representations of the total cross section, equivalent within the NLA. We have combined these different representations with two among the most common methods for the optimization of a perturbative series, namely PMS and BLM, and compared their behavior with the energy with the only available experimental data, those from the LEP2 collider.

  1. Total Cross Sections for Neutron Scattering

    E-Print Network [OSTI]

    C. R. Chinn; Ch. Elster; R. M. Thaler; S. P. Weppner

    1994-10-19

    Measurements of neutron total cross-sections are both extensive and extremely accurate. Although they place a strong constraint on theoretically constructed models, there are relatively few comparisons of predictions with experiment. The total cross-sections for neutron scattering from $^{16}$O and $^{40}$Ca are calculated as a function of energy from $50-700$~MeV laboratory energy with a microscopic first order optical potential derived within the framework of the Watson expansion. Although these results are already in qualitative agreement with the data, the inclusion of medium corrections to the propagator is essential to correctly predict the energy dependence given by the experiment.

  2. The Effect of Lunar-like Satellites on the Orbital Infrared Light Curves of Earth-analog Planets

    E-Print Network [OSTI]

    Nicholas A. Moskovitz; Eric Gaidos; Darren Williams

    2008-10-17

    We investigate the influence of lunar-like satellites on the infrared orbital light curves of Earth-analog extra-solar planets. Such light curves will be obtained by NASA's Terrestrial Planet Finder (TPF) and ESA's Darwin missions as a consequence of repeat observations to confirm the companion status of a putative planet. We use an energy balance model to calculate disk-averaged infrared (bolometric) fluxes from planet-satellite systems over a full orbital period (one year). The satellites are assumed to lack an atmosphere, have a low thermal inertia like that of the Moon and span a range of plausible radii. The planets are assumed to have thermal and orbital properties that mimic those of the Earth while their obliquities and orbital longitudes of inferior conjunction remain free parameters. Even if the gross thermal properties of the planet can be independently constrained (e.g. via spectroscopy or visible-wavelength detection of specular glint from a surface ocean) only the largest (approximately Mars-size) lunar-like satellites can be detected by light curve data from a TPF-like instrument (i.e. one that achieves a photometric signal-to-noise of 10-20 at infrared wavelengths). Non-detection of a lunar-like satellite can obfuscate the interpretation of a given system's infrared light curve so that it may resemble a single planet with high obliquity, different orbital longitude of vernal equinox relative to inferior conjunction and in some cases drastically different thermal characteristics. If the thermal properties of the planet are not independently established then the presence of a lunar-like satellite cannot be inferred from infrared data, thus demonstrating that photometric light curves alone can only be used for preliminary study of extra-solar Earth-like planets.

  3. Frustrated total internal reflection acoustic field sensor

    DOE Patents [OSTI]

    Kallman, Jeffrey S. (Pleasanton, CA)

    2000-01-01

    A frustrated total internal reflection acoustic field sensor which allows the acquisition of the acoustic field over an entire plane, all at once. The sensor finds use in acoustic holography and acoustic diffraction tomography. For example, the sensor may be produced by a transparent plate with transparent support members tall enough to support one or more flexible membranes at an appropriate height for frustrated total internal reflection to occur. An acoustic wave causes the membrane to deflect away from its quiescent position and thus changes the amount of light that tunnels through the gap formed by the support members and into the membrane, and so changes the amount of light reflected by the membrane. The sensor(s) is illuminated by a uniform tight field, and the reflection from the sensor yields acoustic wave amplitude and phase information which can be picked up electronically or otherwise.

  4. Surgical navigation in canine total knee replacement

    E-Print Network [OSTI]

    Peters, Kaleigh M.; Hutter, Erin; Siston, Robert A.; Bertran, Judith

    2015-06-16

    of the cutting block provides a surrogate marker for final alignment of the 179 tibial component. A flat, thin-bladed tracking tool (Figure 2E) was placed on the top 180 surface of the tibial cutting block to record its orientation in the frontal and sagittal... ] Baker KM, Foutz TL, Johnson KJ, et al. Effects of tibial plateau angle and spacer 444 thickness applied during in vitro canine total knee replacement on three-dimensional 445 kinematics and collateral ligament strain. Am J Vet Res 2014; 75...

  5. Kojve and Levinas: Universality Without Totality

    E-Print Network [OSTI]

    Pepitone, Anthony J.

    2010-07-14

    as the End of History is generated from within history, history reserves the final judgment on the value and worth of individuals. Against this tragic conception of history, Levinas poses the eschatological as an anti-tragic order from which each individual...?s worth and singularity is preserved by judgments that have their basis in an infinite time that exceeds history and its tragic totalization. In Chapter IV, I address the question of how Levinasian ethics is consistent with the project of a...

  6. Cogeneration Plant is Designed for Total Energy

    E-Print Network [OSTI]

    Howell, H. D.; Vera, R. L.

    1987-01-01

    stream_source_info ESL-IE-87-09-45.pdf.txt stream_content_type text/plain stream_size 19371 Content-Encoding ISO-8859-1 stream_name ESL-IE-87-09-45.pdf.txt Content-Type text/plain; charset=ISO-8859-1 COGENERATION PLANT... of a 200 MW combined cycle cogeneration plant located at Occidental Chemical Corporation's Battleground chlorine-caustic plant at La Porte, Texas. This successful application of a total energy management concept utilizing combined cycle...

  7. 2014 Retail Power Marketers Sales- Total

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979Coal Consumers THURSDAY, APRILCustomersTotal (Data from

  8. 2014 Total Electric Industry- Revenue (Thousands Dollars)

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979Coal Consumers THURSDAY, APRILCustomersTotal (DataRevenue

  9. Compare All CBECS Activities: Total Energy Use

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet)DecadeYear Jan Feb Mar Apr May Jun Jul Aug Sep3,118,592Number ofByFuel OilByTotal

  10. Total Adjusted Sales of Residual Fuel Oil

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths30,2,8, 2015End Use: TotalEnd

  11. Total Natural Gas Underground Storage Capacity

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths30,2,8,Product: Total CrudeMay-15

  12. 2014 Utility Bundled Retail Sales- Total

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry NaturalPrices1 Table 1.10 CoolingNotes &* j o n pTotal (Data

  13. Total Natural Gas Underground Storage Capacity

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home PageMonthly","10/2015"4,"Ames5 Tables July 1996 Energy Information Administration Office of Coal, Nuclear,DecadeYearbyWithdrawalsHome6,672(MillionFeet)Product: Total

  14. CCD drift-scan imaging lunar occultations: a feasible approach for sub-meter class telescopes

    E-Print Network [OSTI]

    O. Fors; J. Nunez; A. Richichi

    2001-08-27

    A CCD drift-scanning technique for lunar occultation (LO) observations is presented. While this approach has been addressed before by Sturmann (1994) for the case of large telescopes, the technical validity has never been discussed for sub-meter class telescopes. In contrast to Sturmann's scheme, the proposed technique places the CCD in the image plane of the telescope. This does not represent a problem in the case of small telescopes, where the practical angular resolution attainable by LO is not limited by aperture smoothing. Photon-generated charge is read out at millisecond rate on a column-per-column basis, as the diffraction pattern of the occulted star is being tracked. Two LO events (SAO 79031 and SAO 77911) were observed to demonstrate the feasibility of the method. Data analysis was carried out and no angular diameter the observed stars were resolved. We show, however, that the technique could be useful for close binary detections with small telescopes. A discussion of the limiting resolution and magnitude imposed by our instrumentation is carried out, showing that drift-scanning technique could be extended to 1-2m telescopes for stellar diameter determination purposes. Finally, we point out that the technical demands required by this technique can be easily met by most small professional observatories and advanced amateurs.

  15. The Feasibility of Shading the Greenhouse with Dust Clouds at the Stable Lunar Lagrange Points

    E-Print Network [OSTI]

    Curtis Struck

    2007-01-25

    There are many indications that anthropogenic global warming poses a serious threat to our civilization and its ecological support systems. Ideally this problem will be overcome by reducing greenhouse gas emissions. Various space-based methods, including large-scale solar shades, diffusers or atmospheric pollutants, have been considered to reduce the solar constant (input flux) and the warming in case emissions reductions are not achieved in a timely way. Here it is pointed out that proposed technologies for near-Earth orbiting comet deflection, suggest a different kind of space-based solar shade. This shade would be made up of micron-sized dust particles derived from comet fragments or lunar mining, and positioned in orbits near the triangular Lagrange points of the Earth-Moon system. Solar radiation pressure can render such orbits unstable, but a class of nearly resonant, and long-lived orbits is shown to exist, though the phase space volume of such orbits depends on dust grain size. Advantages and disadvantages of this scheme relative to others are considered.

  16. Final binary star results from the ESO VLT Lunar occultations program

    SciTech Connect (OSTI)

    Richichi, A.; Fors, O.; Cusano, F.; Ivanov, V. D.

    2014-03-01

    We report on 13 subarcsecond binaries, detected by means of lunar occultations in the near-infrared at the ESO Very Large Telescope (VLT). They are all first-time detections except for the visual binary HD 158122, which we resolved for the first time in the near-infrared. The primaries have magnitudes in the range K = 4.5-10.0, and companions in the range K = 6.8-11.1. The magnitude differences have a median value of 2.4, with the largest being 4.6. The projected separations are in the range of 4-168 mas, with a median of 13 mas. We discuss and compare our results with the available literature. With this paper, we conclude the mining for binary star detections in the 1226 occultations recorded at the VLT with the ISAAC instrument. We expect that the majority of these binaries may be unresolvable by adaptive optics on current telescopes, and they might be challenging for long-baseline interferometry. However, they constitute an interesting sample for future larger telescopes and for astrometric missions such as GAIA.

  17. Kinetic Electron and Ion Instability of the Lunar Wake Simulated at Physical Mass Ratio

    E-Print Network [OSTI]

    Haakonsen, Christian Bernt; Zhou, Chuteng

    2015-01-01

    The solar wind wake behind the moon is studied with 1D electrostatic particle-in-cell (PIC) simulations using a physical ion to electron mass ratio (unlike prior investigations); the simulations also apply more generally to supersonic flow of dense magnetized plasma past non-magnetic objects. A hybrid electrostatic Boltzmann electron treatment is first used to investigate the ion stability in the absence of kinetic electron effects, showing that the ions are two-stream unstable for downstream wake distances (in lunar radii) greater than about three times the solar wind Mach number. Simulations with PIC electrons are then used to show that kinetic electron effects can lead to disruption of the ion streams at least three times closer to the moon than in the hybrid simulations. This disruption occurs as the result of a novel wake phenomenon: the non-linear growth of electron holes spawned from a narrow dimple in the electron velocity distribution. Most of the holes arising from the dimple are small and quickly l...

  18. On the analytical development of the lunar and solar disturbing functions

    E-Print Network [OSTI]

    Alessandra Celletti; C?t?lin Gale?; Giuseppe Pucacco; Aaron J. Rosengren

    2015-11-07

    We provide a detailed derivation of the analytical expansion of the lunar and solar disturbing functions. We start with Kaula's expansion of the disturbing function in terms of the equatorial elements of both the perturbed and perturbing bodies. Then we provide a detailed proof of Lane's expansion, in which the elements of the Moon are referred to the ecliptic plane. Using this approach the inclination of the Moon becomes nearly constant, while the argument of perihelion, the longitude of the ascending node, and the mean anomaly vary linearly with time. We make a comparison between the different expansions and we profit from such discussion to point out some mistakes in the existing literature, which might compromise the correctness of the results. As an application, we analyze the long-term motion of the highly elliptical and critically inclined Molniya orbits subject to quadrupolar gravitational interactions. The analytical expansions presented herein are very powerful with respect to dynamical studies based on Cartesian equations, because they quickly allow for a more holistic and intuitively understandable picture of the dynamics.

  19. Lunar electric power systems utilizing the SP-100 reactor coupled to dynamic conversion systems. Final report

    SciTech Connect (OSTI)

    Harty, R.B.; Durand, R.E.

    1993-03-01

    An integration study was performed by Rocketdyne under contract to NASA-LeRC. The study was concerned with coupling an SP-0100 reactor to either a Brayton or Stirling power conversion system. The application was for a surface power system to supply power requirements to a lunar base. A power level of 550 kWe was selected based on the NASA Space Exploration Initiative 90-day study. Reliability studies were initially performed to determine optimum power conversion redundancy. This study resulted in selecting three operating engines and one stand-by unit. Integration design studies indicated that either the Brayton or Stirling power conversion systems could be integrated with the PS-100 reactor. The Stirling system had an integration advantage because of smaller piping size and fewer components. The Stirling engine, however, is more complex and heavier than the Brayton rotating unit, which tends to off-set the Stirling integration advantage. From a performance consideration, the Brayton had a 9 percent mass advantage, and the Stirling had a 50 percent radiator advantage.

  20. Solar Total Energy Project final test report

    SciTech Connect (OSTI)

    Nelson, R.F.; Abney, L.O.; Towner, M.L. (Georgia Power Co., Shenandoah, GA (USA))

    1990-09-01

    The Solar Total Energy Project (STEP), a cooperative effort between the United States Department of Energy (DOE) and Georgia Power Company (GPC) located at Shenandoah, Georgia, has undergone several design modifications based on experience from previous operations and test programs. The experiences encountered were discussed in detail in the Solar Total Energy Project Summary Report'' completed in 1987 for DOE. Most of the proposed changes discussed in this report were installed and tested in 1987 as part of two 15-day test programs (SNL Contract No. 06-3049). However, several of the suggested changes were not completed before 1988. These plant modifications include a new distributed control system for the balance of plant (BOP), a fiber a optical communications ring for the field control system, and new control configuration reflecting the new operational procedures caused by the plant modifications. These modifications were tested during a non-consecutive day test, and a 60-day field test conducted during the autumn of 1989. These test were partially funded by SNL under Contract No. 42-4859, dated June 22, 1989. Results of these tests and preliminary analysis are presented in this test summary report. 9 refs., 19 figs., 7 tabs.

  1. ,"Total District Heat Consumption (trillion Btu)",,,,,"District...

    U.S. Energy Information Administration (EIA) Indexed Site

    Heat Consumption (trillion Btu)",,,,,"District Heat Energy Intensity (thousand Btusquare foot)" ,"Total ","Space Heating","Water Heating","Cook- ing","Other","Total ","Space...

  2. ,"Total Natural Gas Consumption (trillion Btu)",,,,,"Natural...

    U.S. Energy Information Administration (EIA) Indexed Site

    Gas Consumption (trillion Btu)",,,,,"Natural Gas Energy Intensity (thousand Btusquare foot)" ,"Total ","Space Heating","Water Heating","Cook- ing","Other","Total ","Space...

  3. NREL: Building America Total Quality Management - 2015 Peer Review...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    NREL: Building America Total Quality Management - 2015 Peer Review NREL: Building America Total Quality Management - 2015 Peer Review Presenter: Stacey Rothgeb, NREL View the...

  4. Total synthesis of Class II and Class III Galbulimima Alkaloids

    E-Print Network [OSTI]

    Tjandra, Meiliana

    2010-01-01

    I. Total Synthesis of All Class III Galbulimima Alkaloids We describe the total synthesis of (+)- and (-)-galbulimima alkaloid 13, (-)-himgaline anad (-)-himbadine. The absolute stereochemistry of natural (-)-galbulimima ...

  5. Enantioselective total syntheses of acylfulvene, irofulven, and the agelastatins

    E-Print Network [OSTI]

    Siegel, Dustin S. (Dustin Scott), 1980-

    2010-01-01

    I. Enantioselective Total Synthesis of (-)-Acylfulvene, and (-)-Irofulven We report the enantioselective total synthesis of (-)-acylfulvene and (-)-irofulven, which features metathesis reactions for the rapid assembly of ...

  6. UPRE method for total variation parameter selection

    SciTech Connect (OSTI)

    Wohlberg, Brendt [Los Alamos National Laboratory; Lin, Youzuo [Los Alamos National Laboratory

    2008-01-01

    Total Variation (TV) Regularization is an important method for solving a wide variety of inverse problems in image processing. In order to optimize the reconstructed image, it is important to choose the optimal regularization parameter. The Unbiased Predictive Risk Estimator (UPRE) has been shown to give a very good estimate of this parameter for Tikhonov Regularization. In this paper we propose an approach to extend UPRE method to the TV problem. However, applying the extended UPRE is impractical in the case of inverse problems such as de blurring, due to the large scale of the associated linear problem. We also propose an approach to reducing the large scale problem to a small problem, significantly reducing computational requirements while providing a good approximation to the original problem.

  7. Lunar Outgassing, Transient Phenomena and The Return to The Moon, II: Predictions for Interactions between Outgassing and Regolith

    E-Print Network [OSTI]

    Arlin P. S. Crotts; Cameron Hummels

    2007-06-27

    We consider the implications from Paper I on how gas leaking through the lunar surface might interact with the regolith, and in what respects this might affect or cause the appearance of optical Transient Lunar Phenomena (TLPs). We consider briefly a range of phenomena, but concentrate at the extremes of high and low gas flow rate, which might represent the more likely behaviors. Extremely fast i.e., explosive, expulsion of gas from the surface is investigated by examining the minimal amount of gas needed to displace a plug of regolith above a site of gaseous overpressure at the regolith's base. The area and timescale of this disturbance, it is consistent with observed TLPs. Furthermore there are several ways in which such an explosion might be expected to change the lunar surface appearance in a way consistent with many TLPs, including production of obscuration, brightening and color changes. At the slow end of the volatile flow range, gas seeping from the interior is retained below the surface for extensive times due to the low diffusivity of regolith material. A special circumstance arises if the volatile flow contains water vapor, because water is uniquely capable of freezing as it passes from the base to the surface of the regolith. For a large TLP site, it is plausible to think of areas on the square-km scale accumulating significant bodies of water ice. Furthermore, as the system evolves over geological time, the ice accumulation zone will evolve downwards into the regolith. Since many reactions possible between the volatiles and regolith, depending on the additional gases besides water, can act to decrease diffusivity in the regolith, it is plausible that the volatiles produce a barrier between the seepage source and vacuum, forcing the ice zone to expand to larger areas.

  8. Totally Corrective Boosting with Cardinality Penalization

    E-Print Network [OSTI]

    Vasil S. Denchev; Nan Ding; Shin Matsushima; S. V. N. Vishwanathan; Hartmut Neven

    2015-04-07

    We propose a totally corrective boosting algorithm with explicit cardinality regularization. The resulting combinatorial optimization problems are not known to be efficiently solvable with existing classical methods, but emerging quantum optimization technology gives hope for achieving sparser models in practice. In order to demonstrate the utility of our algorithm, we use a distributed classical heuristic optimizer as a stand-in for quantum hardware. Even though this evaluation methodology incurs large time and resource costs on classical computing machinery, it allows us to gauge the potential gains in generalization performance and sparsity of the resulting boosted ensembles. Our experimental results on public data sets commonly used for benchmarking of boosting algorithms decidedly demonstrate the existence of such advantages. If actual quantum optimization were to be used with this algorithm in the future, we would expect equivalent or superior results at much smaller time and energy costs during training. Moreover, studying cardinality-penalized boosting also sheds light on why unregularized boosting algorithms with early stopping often yield better results than their counterparts with explicit convex regularization: Early stopping performs suboptimal cardinality regularization. The results that we present here indicate it is beneficial to explicitly solve the combinatorial problem still left open at early termination.

  9. Total Operators and Inhomogeneous Proper Values Equations

    E-Print Network [OSTI]

    Jose G. Vargas

    2015-07-09

    Kaehler's two-sided angular momentum operator, K + 1, is neither vector-valued nor bivector-valued. It is total in the sense that it involves terms for all three dimensions. Constant idempotents that are "proper functions" of K+1's components are not proper functions of K+1. They rather satisfy "inhomogeneous proper-value equations", i.e. of the form (K + 1)U = {\\mu}U + {\\pi}, where {\\pi} is a scalar. We consider an equation of that type with K+1 replaced with operators T that comprise K + 1 as a factor, but also containing factors for both space and spacetime translations. We study the action of those T's on linear combinations of constant idempotents, so that only the algebraic (spin) part of K +1 has to be considered. {\\pi} is now, in general, a non-scalar member of a Kaehler algebra. We develop the system of equations to be satisfied by the combinations of those idempotents for which {\\pi} becomes a scalar. We solve for its solutions with {\\mu} = 0, which actually also makes {\\pi} = 0: The solutions with {\\mu} = {\\pi} = 0 all have three constituent parts, 36 of them being different in the ensemble of all such solutions. That set of different constituents is structured in such a way that we might as well be speaking of an algebraic representation of quarks. In this paper, however, we refrain from pursuing this identification in order to emphasize the purely mathematical nature of the argument.

  10. THE OUTER EDGE OF THE KUIPER BELT. J. M. Hahn, Lunar and Planetary Institute, Houston TX 77058, USA, (hahn@lpi.usra.edu).

    E-Print Network [OSTI]

    Hahn, Joseph M.

    THE OUTER EDGE OF THE KUIPER BELT. J. M. Hahn, Lunar and Planetary Institute, Houston TX 77058, USA, (hahn@lpi.usra.edu). One of the more curious features of the Kuiper Belt is the apparent dearth of Kuiper Belt Objects (KBOs) orbiting the Sun beyond 50 AU with modest eccentricities and incli- nations, e

  11. IMPACT-GENERATED TSUNAMIS: AN OVER-RATED HAZARD. H. J. Melosh, Lunar and Planetary Lab, University of Arizona, Tucson AZ 85721 (jmelosh@lpl.arizona.edu).

    E-Print Network [OSTI]

    Melosh, H. Jay

    proposed by waves generated by nuclear explosions in the ocean. Authored by tsunami expert William Van DornIMPACT-GENERATED TSUNAMIS: AN OVER-RATED HAZARD. H. J. Melosh, Lunar and Planetary Lab, University suggested that oceanic waves (tsunami) created by the impact of relatively small asteroids into the Earth

  12. LUNASKA experiments using the Australia Telescope Compact Array to search for ultrahigh energy neutrinos and develop technology for the lunar Cherenkov technique

    SciTech Connect (OSTI)

    James, C. W.; Protheroe, R. J.; Ekers, R. D.; Phillips, C. J.; Roberts, P.; Alvarez-Muniz, J.; Bray, J. D.; McFadden, R. A.

    2010-02-15

    We describe the design, performance, sensitivity and results of our recent experiments using the Australia Telescope Compact Array (ATCA) for lunar Cherenkov observations with a very wide (600 MHz) bandwidth and nanosecond timing, including a limit on an isotropic neutrino flux. We also make a first estimate of the effects of small-scale surface roughness on the effective experimental aperture, finding that contrary to expectations, such roughness will act to increase the detectability of near-surface events over the neutrino energy-range at which our experiment is most sensitive (though distortions to the time-domain pulse profile may make identification more difficult). The aim of our 'Lunar UHE Neutrino Astrophysics using the Square Kilometre Array' (LUNASKA) project is to develop the lunar Cherenkov technique of using terrestrial radio telescope arrays for ultrahigh energy (UHE) cosmic ray (CR) and neutrino detection, and, in particular, to prepare for using the Square Kilometre Array (SKA) and its path-finders such as the Australian SKA Pathfinder (ASKAP) and the Low Frequency Array (LOFAR) for lunar Cherenkov experiments.

  13. THE SECULAR EVOLUTION OF THE PRIMORDIAL KUIPER BELT. J. M. Hahn, Lunar and Planetary Institute, Houston TX 77058, USA, (hahn@lpi.usra.edu).

    E-Print Network [OSTI]

    Hahn, Joseph M.

    THE SECULAR EVOLUTION OF THE PRIMORDIAL KUIPER BELT. J. M. Hahn, Lunar and Planetary Institute, Houston TX 77058, USA, (hahn@lpi.usra.edu). The Kuiper Belt is a vast swarm of comets orbiting at the Solar System's outer edge. This Belt is comprised of debris that was left over from the epoch of planet

  14. Impact of 15 Jan 2010 annular solar eclipse on the equatorial and low latitude ionosphere over Indian region from Magnetometer, Ionosonde and GPS observations

    E-Print Network [OSTI]

    Panda, Sampad Kumar; Rajaram, Girija; Sripathi, Samireddipalle; Bhaskar, Ankush

    2015-01-01

    The annular eclipse of Jan 15, 2010 over southern India was studied with a network of multi-instrumental observations consisting magnetometer, ionosonde and GPS receivers. By selecting the day before and the normal EEJ days as the control days, it is intrinsically proved that the regular eastward electric field for the whole day at the equator was not just weakened but actually was flipped for several hours by the influence of tides related to the spectacular Sun-Moon-Earth alignment near the middle of the day. The effect of flipping the electric field was clearly seen in the equatorial ionosonde data and through the large array of GPS receivers that accomplished the TEC data. The main impact of the change in the electric field was the reduced EIA at all latitudes, with the anomaly crest that shifted towards the equator. The equatorial F-region density profile was also showing an enhanced F region peak in spite of a reduced VTEC. By comparison to the plasma density depletion associated with the temporary lack...

  15. Project Functions and Activities Definitions for Total Project Cost

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-03-28

    This chapter provides guidelines developed to define the obvious disparity of opinions and practices with regard to what exactly is included in total estimated cost (TEC) and total project cost (TPC).

  16. On the statistical modeling of persistence in total ozone anomalies

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    On the statistical modeling of persistence in total ozone anomalies Article Published Version in total ozone anomalies. Journal of Geophysical Research, 115. D16306. ISSN 0148-0227 doi: 10.1029/2009JD the statistical modeling of persistence in total ozone anomalies D. I. Vyushin,1 T. G. Shepherd,1 and V. E

  17. Summertime total ozone variations over middle and polar latitudes

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    Summertime total ozone variations over middle and polar latitudes Article Published Version Fioletov, V. E. and Shepherd, T. G. (2005) Summertime total ozone variations over middle and polar's research outputs online #12;Summertime total ozone variations over middle and polar latitudes Vitali E

  18. CoRoT photometry and high-resolution spectroscopy of the interacting eclipsing binary AU Mon

    E-Print Network [OSTI]

    Desmet, M; Baudin, F; Harmanec, P; Lampens, P; Pacheco, E Janot; Briquet, M; Degroote, P; Neiner, C; Mathias, P; Poretti, E; Rainer, M; Uytterhoeven, K; Amado, P J; Valtier, J -C; Prsa, A; Maceroni, C; Aerts, C

    2009-01-01

    Analyses of very accurate CoRoT space photometry, past Johnson V photoelectric photometry and high-resolution \\'echelle spectra led to the determination of improved and consistent fundamental stellar properties of both components of AU Mon. We derived new, accurate ephemerides for both the orbital motion (with a period of 11.113d) and the long-term, overall brightness variation (with a period of 416.9d) of this strongly interacting Be + G semi-detached binary. It is shown that this long-term variation must be due to attenuation of the total light by some variable circumbinary material. We derived the binary mass ratio $M_{\\rm G}/M_{\\rm B}$ = 0.17\\p0.03 based on the assumption that the G-type secondary fills its Roche lobe and rotates synchronously. Using this value of the mass ratio as well as the radial velocities of the G-star, we obtained a consistent light curve model and improved estimates of the stellar masses, radii, luminosities and effective temperatures. We demonstrate that the observed lines of the...

  19. The 0.4-Mo Eclipsing Binary CU Cancri: Absolute Dimensions, Comparison with Evolutionary Models and Possible Evidence for a Circumstellar Dust Disk

    E-Print Network [OSTI]

    I. Ribas

    2002-11-05

    Photometric observations in the R and I bands of the detached M-type double-lined eclipsing binary CU Cnc have been acquired and analysed. The photometric elements obtained from the analysis of the light curves have been combined with an existing spectroscopic solution to yield high-precision (errors<2%) absolute dimensions: M_A=0.4333+/-0.0017 Mo, M_B=0.3980+/-0.0014 Mo, R_A=0.4317+/-0.0052 Ro, and R_B=0.3908+/-0.0094 Ro. The mean effective temperature of the system has been estimated to be Teff=3140+/-150 K by comparing multi-band photometry with synthetic colors computed from model atmospheres. Additionally, we have been able to obtain an estimate for the age (~320 Myr) and chemical composition ([Fe/H]~0.0) of the binary system through its membership of the Castor moving group. With all these observational constraints, we have carried out a critical test of recent stellar models for low-mass stars. The comparison reveals that most evolutionary models underestimate the radius of the stars by as much as 10%, thus confirming the trend observed by Torres & Ribas (2002) for YY Gem and V818 Tau. In the mass-absolute magnitude diagram, CU Cnc is observed to be dimmer than other stars of the same mass. After ruling out a number of different scenarios, the apparent faintness of CU Cnc can be explained if its components are some 10% cooler than similar-mass stars or if there is some source of circumstellar dust absorption. The latter could be a tantalizing indirect evidence for a coplanar (Vega-like) dusty disk around this relatively young M-type binary.

  20. Absolute dimensions of the M-type eclipsing binary YY Geminorum (Castor C): a challenge to evolutionary models in the lower main-sequence

    E-Print Network [OSTI]

    Guillermo Torres; Ignasi Ribas

    2001-11-08

    We present new spectroscopic observations of the detached late-type double-lined eclipsing binary YY Gem, a member of the Castor sextuple system and one of the benchmarks for the comparison between observations and stellar evolution theory in the lower main-sequence. In addition, we have re-analyzed existing light curves in several passbands using modern techniques that account for the conspicuous presence of spots. This, combined with the spectroscopy, has yielded a very precise determination of the absolute dimensions of the components, which are virtually identical to each other. We obtain mean values of M=0.5992+/-0.0047 Mo, R=0.6191+/-0.0057 Ro, and Teff=3820+/-100 K. Both the mass and the radius determinations are good to better than 1%. A re-analysis of the Hipparcos transit data for Castor AB has yielded an improved parallax for the system of 66.90+/-0.63 mas. With this, we have estimated the age (~370 Myr) and metal abundance ([Fe/H]~0.0) of YY Gem from isochrone fits to Castor A and B. We have compared the observations of YY Gem with a large number of recent theoretical calculations, and we show that all models underestimate the radius by up to 20%, and most overestimate the effective temperature by 150 K or more. Both of these trends are confirmed by observations of another similar system in the Hyades cluster (V818 Tau). Consequently, theoretical ages for relatively low-mass objects such as T Tauri stars derived from the H-R diagram may be considerably biased. If the radius is used directly as a measure of evolution, ages could be underestimated by as much as a factor of 10 in this mass regime. In view of these discrepancies, absolute ages from essentially all current models for the lower main sequence must be viewed with at least some measure of skepticism. (abridged)

  1. Study of eclipsing binary and multiple systems in ob associations. II. The cygnus ob region: V443 Cyg, V456 Cyg, and V2107 Cyg

    SciTech Connect (OSTI)

    Bak??, V.; Bak??, H.; Hensberge, H.; Bilir, S.; Y?lmaz, F.; K?ran, E.; Demircan, O.; Zejda, M.; Mikulek, Z.

    2014-06-01

    Three presumably young eclipsing binary systems in the direction of the Cygnus OB1, OB3, and OB9 associations are studied. Component spectra are reconstructed and their orbits are determined using light curves and spectra disentangling techniques. V443 Cyg and V456 Cyg have circular orbits while the light curve of V2107 Cyg imposes a slightly eccentric orbit (e = 0.045 0.03). V443 Cyg harbors F-type stars, not young early-A stars as previously suggested in the literature based solely on photometry. It appears to be situated in the foreground (distance 0.6 0.2 kpc) of the young stellar populations in Cygnus. V456 Cyg, at a distance of 0.50 0.03 kpc, consists of a slightly metal-weak A-type star and an early-F star. The age of both systems, on or very near to the main sequence, remains uncertain by an order of magnitude. V2107 Cyg is a more massive system (8.9 2 and 4.5 1.2 M {sub ?}) at 1.5 0.5 kpc and, also kinematically, a strong candidate-member of Cyg OB1. The more massive component is slightly evolved and appears to undergo non-radial ?Cep-type pulsations. The Doppler signal of the secondary is barely detectable. A more extensive, asteroseismological study is necessary to fix masses more precisely. Nevertheless, the position of the primary in the H-R diagram confines the age reasonably well to 20 5 Myr, indicating that for Cyg OB1 has a similar extent of star formation history as that established for Cyg OB2.

  2. KEPLER CYCLE 1 OBSERVATIONS OF LOW-MASS STARS: NEW ECLIPSING BINARIES, SINGLE STAR ROTATION RATES, AND THE NATURE AND FREQUENCY OF STARSPOTS

    SciTech Connect (OSTI)

    Harrison, T. E.; Coughlin, J. L.; Ule, N. M.; Lopez-Morales, M. E-mail: jlcough@nmsu.edu E-mail: mlopez@ieec.uab.es

    2012-01-15

    We have analyzed Kepler light curves for 849 stars with T{sub eff} {<=} 5200 K from our Cycle 1 Guest Observer program. We identify six new eclipsing binaries, one of which has an orbital period of 29.91 days and two of which are probably W UMa variables. In addition, we identify a candidate 'warm Jupiter' exoplanet. We further examine a subset of 670 sources for variability. Of these objects, 265 stars clearly show periodic variability that we assign to rotation of the low-mass star. At the photometric precision level provided by Kepler, 251 of our objects showed no evidence for variability. We were unable to determine periods for 154 variable objects. We find that 79% of stars with T{sub eff} {<=} 5200 K are variable. The rotation periods we derive for the periodic variables span the range 0.31 days {<=} P{sub rot} {<=} 126.5 days. A considerable number of stars with rotation periods similar to the solar value show activity levels that are 100 times higher than the Sun. This is consistent with results for solar-like field stars. As has been found in previous studies, stars with shorter rotation periods generally exhibit larger modulations. This trend flattens beyond P{sub rot} = 25 days, demonstrating that even long-period binaries may still have components with high levels of activity and investigating whether the masses and radii of the stellar components in these systems are consistent with stellar models could remain problematic. Surprisingly, our modeling of the light curves suggests that the active regions on these cool stars are either preferentially located near the rotational poles, or that there are two spot groups located at lower latitudes, but in opposing hemispheres.

  3. The G+M eclipsing binary V530 Orionis: a stringent test of magnetic stellar evolution models for low-mass stars

    SciTech Connect (OSTI)

    Torres, Guillermo; Lacy, Claud H. Sandberg; Pavlovski, Kreimir; Feiden, Gregory A.; Sabby, Jeffrey A.; Bruntt, Hans; Clausen, Jens Viggo

    2014-12-10

    We report extensive photometric and spectroscopic observations of the 6.1 day period, G+M-type detached double-lined eclipsing binary V530 Ori, an important new benchmark system for testing stellar evolution models for low-mass stars. We determine accurate masses and radii for the components with errors of 0.7% and 1.3%, as follows: M {sub A} = 1.0038 0.0066 M {sub ?}, M {sub B} = 0.5955 0.0022 M {sub ?}, R {sub A} = 0.980 0.013 R {sub ?}, and R {sub B} = 0.5873 0.0067 R {sub ?}. The effective temperatures are 5890 100 K (G1 V) and 3880 120 K (M1 V), respectively. A detailed chemical analysis probing more than 20 elements in the primary spectrum shows the system to have a slightly subsolar abundance, with [Fe/H] = 0.12 0.08. A comparison with theory reveals that standard models underpredict the radius and overpredict the temperature of the secondary, as has been found previously for other M dwarfs. On the other hand, models from the Dartmouth series incorporating magnetic fields are able to match the observations of the secondary star at the same age as the primary (?3 Gyr) with a surface field strength of 2.1 0.4 kG when using a rotational dynamo prescription, or 1.3 0.4 kG with a turbulent dynamo approach, not far from our empirical estimate for this star of 0.83 0.65 kG. The observations are most consistent with magnetic fields playing only a small role in changing the global properties of the primary. The V530 Ori system thus provides an important demonstration that recent advances in modeling appear to be on the right track to explain the long-standing problem of radius inflation and temperature suppression in low-mass stars.

  4. ,"Crude Oil and Petroleum Products Total Stocks Stocks by Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Crude Oil and Petroleum Products Total Stocks Stocks by Type",6,"Monthly","82015","1151956"...

  5. Residential Energy Consumption Survey Results: Total Energy Consumptio...

    Open Energy Info (EERE)

    Residential Energy Consumption Survey Results: Total Energy Consumption, Expenditures, and Intensities (2005) The Residential Energy Consumption Survey (RECS) is a national survey...

  6. Curtailment Date & Time Total Wind SCE Plus CSGI Reserves

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Curtailment Date & Time Total Wind SCE Plus CSGI Reserves Deployed Reserves Held Amount Curtailed Reserves Deployed Percent Adjusted Amount Curtailed Plus Wind SCE with CSGI 26...

  7. Total internal reflection photonic crystal prism Ethan Schonbrun1

    E-Print Network [OSTI]

    Fainman, Yeshaiahu

    Total internal reflection photonic crystal prism Ethan Schonbrun1 , Maxim Abashin2 , John Blair3 of Electrical and Computer Engineering, University of Colorado, Boulder, Colorado, 80309 ethan

  8. Trends in Commercial Buildings--Total Primary Energy Detail

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Consumption and Graph Total Primary Energy Consumption Graph Detail and Data Table 1979 to 1992 primary consumption trend with 95% confidence ranges 1979 to 1992 primary...

  9. Trends in Commercial Buildings--Total Site Energy Detail

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Consumption and Graph Total Site Energy Consumption Graph Detail and Data Table 1979 to 1992 site consumption trend with 95% confidence ranges 1979 to 1992 site...

  10. Correlation Of Surface Heat Loss And Total Energy Production...

    Open Energy Info (EERE)

    Correlation Of Surface Heat Loss And Total Energy Production For Geothermal Systems Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Correlation...

  11. AN UPWIND FINITE-DIFFERENCE METHOD FOR TOTAL ...

    E-Print Network [OSTI]

    2010-09-17

    their problem, unlike ours, has a true notion of wind. In the present ...... Total variation minimization and a class of binary mrf models, in Energy Minimization.

  12. ,"Total Fuel Oil Consumption (trillion Btu)",,,,,"Fuel Oil Energy...

    U.S. Energy Information Administration (EIA) Indexed Site

    A. Fuel Oil Consumption (Btu) and Energy Intensities by End Use for All Buildings, 2003" ,"Total Fuel Oil Consumption (trillion Btu)",,,,,"Fuel Oil Energy Intensity (thousand Btu...

  13. NELIOTA: ESA's new NEO lunar impact monitoring project with the 1.2m telescope at the National Observatory of Athens

    E-Print Network [OSTI]

    Bonanos, A Z; Boumis, P; Bellas-Velidis, I; Maroussis, A; Dapergolas, A; Fytsilis, A; Charmandaris, V; Tsiganis, K; Tsinganos, K

    2015-01-01

    NELIOTA is a new ESA activity launched at the National Observatory of Athens in February 2015 aiming to determine the distribution and frequency of small near-earth objects (NEOs) via lunar monitoring. The project involves upgrading the 1.2m Kryoneri telescope at the National Observatory of Athens, procuring two fast-frame cameras, and developing a software system, which will control the telescope and the cameras, process the images and automatically detect NEO impacts. NELIOTA will provide a web-based user interface, where the impact events will be reported and made available to the scientific community and the general public. The objective of this 3.5 year activity is to design, develop and implement a highly automated lunar monitoring system, which will conduct an observing campaign for 2 years in search of NEO impact flashes on the Moon. The impact events will be verified, characterised and reported. The 1.2m telescope will be capable of detecting flashes much fainter than current, small-aperture, lunar m...

  14. L p Linear Discrepancy of Totally Unimodular Benjamin Doerr +

    E-Print Network [OSTI]

    Doerr, Benjamin

    L p Linear Discrepancy of Totally Unimodular Matrices # Benjamin Doerr + August 28, 2006 Abstract Let p # [1, #[ and c p = max a#[0,1] ((1 - a)a p + a(1 - a) p ) 1/p . We prove that the known upper bound lindisc p (A) # c p for the L p linear discrepancy of a totally unimodular matrix

  15. Jacobi forms over totally real number elds Howard Skogman

    E-Print Network [OSTI]

    Skogman, Howard

    Jacobi forms over totally real number #12;elds Howard Skogman 0 2000 Mathematics Subject Classi#12;cation: 11F50 1 #12; Abstract We de#12;ne Jacobi forms over a totally real algebraic number #12;eld K upper half space respectively. Then symplectic modular forms are created and Jacobi forms arise

  16. TOC Total organic carbon MBC Microbial biomass carbon

    E-Print Network [OSTI]

    Virginia Tech

    C Carbon TOC Total organic carbon MBC Microbial biomass carbon Active C Pool Indicated by Light, the relationship between carbon dynamics including total organic carbon (TOC) storage, microbial biomass carbon and microbial biomass carbon in subsoil 4 years after rehabilitation Microbial biomass carbon had a positive

  17. Concise total synthesis of (+)-bionectins A and C

    E-Print Network [OSTI]

    Coste, Alexis

    The concise and efficient total synthesis of (+)-bionectins A and C is described. Our approach to these natural products features a new and scalable method for erythro-?-hydroxytryptophan amino acid synthesis, an intramolecular ...

  18. AEO2011:Total Energy Supply, Disposition, and Price Summary ...

    Open Energy Info (EERE)

    case. The dataset uses quadrillion Btu and the U.S. Dollar. The data is broken down into production, imports, exports, consumption and price. Data and Resources AEO2011:Total...

  19. Third cumulant of the total transmission of diffuse waves

    E-Print Network [OSTI]

    van Rossum, Mark; de Boer, Johannes; Nieuwenhuizen, Th.M

    1995-01-01

    The probability distibution of the total transmission is studied for waves multiply scattered from a random, static configuration of scatterers. A theoretical study of the second and third cumulants of this distribution ...

  20. Limitation Date and Time Total Wind SCE Plus CSGI Reserves...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Limitation Date and Time Total Wind SCE Plus CSGI Reserves Deployed Reserves Held Reserves Deployed Percent 1182015 3:00 718 -1092 -1100 -99% 262015 12:14 925 -1096 -1100 -99%...

  1. Developing a total replacement cost index for suburban office projects

    E-Print Network [OSTI]

    Hansen, David John, S.M. Massachusetts Institute of Technology

    2006-01-01

    Understanding the components of replacement costs for office developments, and how these components combine to create total development costs is essential for success in office real estate development. Surprisingly, the ...

  2. Energy dependence of the total photoproduction cross section at HERA

    E-Print Network [OSTI]

    Aharon Levy

    2008-07-01

    The energy dependence of the total photon-proton cross-section is determined from data collected with the ZEUS detector at HERA with two different proton beam energies.

  3. MUJERES ( * ) TOTAL ANATOMA, HISTOLOGA Y NEUROCIENCIA 4 10

    E-Print Network [OSTI]

    Autonoma de Madrid, Universidad

    7 TOTAL CIENCIAS 108 200 ANLISIS ECONMICO: TEORA ECONOMA E HISTORIA ECONMICA 1 3 CONTABILIDAD 1 5 CONTABILIDAD Y ORGANIZACIN EMPRESARIAL 1 4 ECONMICA APLICADA 2 1 ESTRUCTURA ECONMICA Y ECONOMA

  4. Total Ownership Cost (TOC) Cost as an Independent Variable

    E-Print Network [OSTI]

    $ + procurement $ + operation $ + logistical support $ + disposal $ Linked - Indirect Direct Direct Cost Life with the research, development, procurement, operation, logistical support and disposal of an individual weapon, operation, logistical support and disposal of an individual weapon system including the total supporting

  5. Physisorption and Chemisorption Methods for Evaluating the Total...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Methods for Evaluating the Total Surface Area and Active Surface Area of Two Types of Carbon Materials TSA is a gross indicator of soot reactivity and does not always...

  6. ,"Total Fuel Oil Consumption (trillion Btu)",,,,,"Fuel Oil Energy...

    U.S. Energy Information Administration (EIA) Indexed Site

    in this table do not include enclosed malls and strip malls. In the 1999 CBECS, total fuel oil consumption in malls was not statistically significant. (*)Value rounds to zero...

  7. National Fuel Cell and Hydrogen Energy Overview: Total Energy...

    Broader source: Energy.gov (indexed) [DOE]

    at the Total Energy USA 2012 meeting in Houston, Texas, on November 27, 2012. National Fuel Cell and Hydrogen Energy Overview More Documents & Publications U.S. Department of...

  8. CIGNA Study Uncovers Relationship of Disabilities to Total Benefits Costs

    Broader source: Energy.gov [DOE]

    The findings of a new study reveal an interesting trend. Integrating disability programs with health care programs can potentially lower employers' total benefits costs and help disabled employees get back to work sooner and stay at work.

  9. Distinguishing total and partial identity: Evidence from Chol

    E-Print Network [OSTI]

    Gallagher, Gillian

    This paper argues that long-distance assimilations between consonants come in two varieties: Total identity, which arises via a non-local relation between the interacting segments; and partial identity, which results from ...

  10. Amplified total internal reflection: theory, analysis, and demonstration of

    E-Print Network [OSTI]

    Hagness, Susan C.

    : The Finite-Difference Time-Domain Method, 2nd ed. (Artech House, 2000). 10. Z. Wang, Z. Zhang, Z. Xu, and Q a passive medium upon total internal reflection (TIR) from a gainy medium, has been the subject

  11. Amplified total internal reflection: theory, analysis, and demonstration of

    E-Print Network [OSTI]

    Schneider, John B.

    : The Finite-Difference Time-Domain Method, 2nd ed. (Artech House, 2000). 10. Z. Wang, Z. Zhang, Z. Xu, and Q amplification that occurs within a passive medium upon total internal reflection (TIR) from a gainy medium, has

  12. Summary and recommendations: Total fuel cycle assessment workshop

    SciTech Connect (OSTI)

    1995-08-01

    This report summarizes the activities of the Total Fuel Cycle Assessment Workshop held in Austin, Texas, during October 6--7, 1994. It also contains the proceedings from that workshop.

  13. Variation of total serum cholesterol with monthly outdoor temperature

    E-Print Network [OSTI]

    Thornton, Kathleen Iris

    1990-01-01

    OF SCIENCE December 1990 Major Subject: Epidemiology VARIATION OF TOTAL SERUM CHOLESTEROL W1TH MONTHLY OUTDOOR TEMPERATURE A Thesis by KATHLEEN IRIS THORNTON Approved as to style and content by Leon H. Russell (Chair of Committee) Pete D. Teel... (Member) Timot y D. Phillips (Member) Gerald R. Bratton (Head of Department) December 1990 ABSTRACT Variation of Total Serum Cholesterol with Monthly Outdoor Temperature. (December 1990) Kathleen Iris Thornton, B. S. , Texas A&M University Chair...

  14. Illustrativemathematics.org Modeling Real World

    E-Print Network [OSTI]

    Ferguson, Thomas S.

    , University of New Mexico Curtis Center Mathematics and Teaching Conference Los Angeles California March 2 G-MG Solar Eclipse Alignment 1: G-MG.A.1 Not yet tagged A solar eclipse occurs when the moon passes eclipses are rare? 93,000,000 239,000 225,600 252,100 1080 432,000 #12;Commentary: Total solar eclipses

  15. Estimating Total Energy Consumption and Emissions of China's Commercial and Office Buildings

    E-Print Network [OSTI]

    Fridley, David G.

    2008-01-01

    Estimating Total Energy Consumption and Emissions of Chinasof Chinas total energy consumption mix. However, accuratelyof Chinas total energy consumption, while others estimate

  16. Total aerosol effect: forcing or radiative flux perturbation?

    SciTech Connect (OSTI)

    Lohmann, Ulrike; Storelvmo, Trude; Jones, Andy; Rotstayn, Leon; Menon, Surabi; Quaas, Johannes; Ekman, Annica; Koch, Dorothy; Ruedy, Reto

    2009-09-25

    Uncertainties in aerosol forcings, especially those associated with clouds, contribute to a large extent to uncertainties in the total anthropogenic forcing. The interaction of aerosols with clouds and radiation introduces feedbacks which can affect the rate of rain formation. Traditionally these feedbacks were not included in estimates of total aerosol forcing. Here we argue that they should be included because these feedbacks act quickly compared with the time scale of global warming. We show that for different forcing agents (aerosols and greenhouse gases) the radiative forcings as traditionally defined agree rather well with estimates from a method, here referred to as radiative flux perturbations (RFP), that takes these fast feedbacks and interactions into account. Thus we propose replacing the direct and indirect aerosol forcing in the IPCC forcing chart with RFP estimates. This implies that it is better to evaluate the total anthropogenic aerosol effect as a whole.

  17. Grain - A Java Analysis Framework for Total Data Readout

    E-Print Network [OSTI]

    P. Rahkila

    2007-11-21

    Grain is a data analysis framework developed to be used with the novel Total Data Readout data acquisition system. In Total Data Readout all the electronics channels are read out asynchronously in singles mode and each data item is timestamped. Event building and analysis has to be done entirely in the software post-processing the data stream. A flexible and efficient event parser and the accompanying software framework have been written entirely in Java. The design and implementation of the software are discussed along with experiences gained in running real-life experiments.

  18. Flow cytometric measurement of total DNA and incorporated halodeoxyuridine

    DOE Patents [OSTI]

    Dolbeare, Frank A. (Livermore, CA); Gray, Joe W. (Livermore, CA)

    1986-01-01

    A method for the simultaneous flow cytometric measurement of the total DNA content and the level of DNA synthesis in normal and malignant cells is disclosed. The sensitivity of the method allows a study of cell cycle traverse rates for large scale cell populations as well as single cell measurements. A DNA stain such as propidium iodide is used as the probe for the measurement of total DNA content and a monoclonal antibody reactive with a DNA precursor such as bromodeoxyuridine (BrdU) is used as a probe for the measurement of BrdU uptake by the cells as a measure of DNA synthesis.

  19. Wisconsin Natural Gas Total Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google5.10 5.24 5.29 5.84 5.08 4.25 1989-2015 Residential Price 11.35 12.13 12.37 12.57 11.71 11.24 1989-2015 Percentage of Total ResidentialDecade Year-0 Year-1 Year-24.47Total

  20. Minnesota Natural Gas Total Consumption (Million Cubic Feet)

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet)DecadeYear Jan Feb Mar Apr 2012DecadeTotal19 15 (Million CubicTotal Consumption

  1. Mississippi Natural Gas Total Consumption (Million Cubic Feet)

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet)DecadeYear Jan Feb Mar Apr 2012DecadeTotal19 1522 35Feet)2009 201022 858Total

  2. Table 17. Total Delivered Residential Energy Consumption, Projected vs. Actual

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988 1.996Deutsche Bank AG Weekly7,674a.TotalTotal

  3. Total lightning observations of severe convection over North Texas

    E-Print Network [OSTI]

    McKinney, Christopher Michael

    2009-05-15

    potential. Total lightning data were obtained from Vaisala Inc.s Dallas/Fort Worth (D/FW) Lightning Detection and Ranging (LDAR) network. Radar data from two Weather Surveillance Radar 1988 Doppler (WSR-88D) sites were used for position data...

  4. Alcator C-Mod FY2007 Research Totals by Quarter

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7 Research Operations as of 83107 Research Days Research Weeks Total FY07 Research Weeks Q1 0.0 0.0 0.0 Q2 1.06 0.27 0.27 Q3 36.20 9.05 9.32 Q4 21.50 5.37 14.69 Detailed run run...

  5. Alcator C-Mod FY2008 Research Totals by Quarter

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8 Research Operations as of 52708 Research Days Research Weeks Total FY08 Research Weeks Q1 4.25 1.06 1.06 Q2 34.5 8.6 9.7 Q3 24.2 6.1 15.7 Q4 Detailed run descriptions can be...

  6. A Simple Rate Control Algorithm for Maximizing Total User Utility

    E-Print Network [OSTI]

    Sarkar, Saswati

    A Simple Rate Control Algorithm for Maximizing Total User Utility Koushik Kar y Saswati Sarkar user utility. It takes into account the pos sible differences in user requirements, and also provides the network to know the user utility functions. In our algorithm, the network communi cates to the user

  7. Understanding and Abstracting Total Data Center Power Steven Pelley

    E-Print Network [OSTI]

    Wenisch, Thomas F.

    Understanding and Abstracting Total Data Center Power Steven Pelley David Meisner Thomas F. Wenisch center power consumption has led to a surge in research activity on data center energy effi- ciency. Though myriad, most existing energy-efficiency efforts focus narrowly on a single data center subsystem

  8. Turbidity and Total Suspended Solid Concentration Dynamics in Streamflow

    E-Print Network [OSTI]

    and sediment transport in California oak woodland watersheds. Introduction California's oak woodland watershedsTurbidity and Total Suspended Solid Concentration Dynamics in Streamflow from California Oak experimental watersheds in the northern Sierra foothills and north coast oak woodlands of California. Rating

  9. Estimations of total mass and energy of the universe

    E-Print Network [OSTI]

    Dimitar Valev

    2010-04-07

    The recent astronomical observations indicate that the expanding universe is homogeneous, isotropic and asymptotically flat. The Euclidean geometry of the universe enables to determine the total gravitational and kinetic energy of the universe by Newtonian gravity in a flat space. By dimensional analysis, we have found the mass of the universe close to the Hoyle-Carvalho formula M ~ c^3/(GH). This value is independent from the cosmological model and infers a size (radius) of the universe close to Hubble distance. It has been shown that almost the entire kinetic energy of the universe ensues from the cosmological expansion. Both, the total gravitational and kinetic energies of the universe have been determined in relation to an observer at an arbitrary location. The relativistic calculations for total kinetic energy have been made and the dark energy has been excluded from calculations. The total mechanical energy of the universe has been found close to zero, which is a remarkable result. This result supports the conjecture that the gravitational energy of the universe is approximately balanced with its kinetic energy of the expansion.

  10. Apparatus and method for quantitatively evaluating total fissile and total fertile nuclide content in samples. [Patent application

    DOE Patents [OSTI]

    Caldwell, J.T.; Kunz, W.E.; Cates, M.R.; Franks, L.A.

    1982-07-07

    Simultaneous photon and neutron interrogation of samples for the quantitative determination of total fissile nuclide and total fertile nuclide material present is made possible by the use of an electron accelerator. Prompt and delayed neutrons produced from resulting induced fission are counted using a single detection system and allow the resolution of the contributions from each interrogating flux leading in turn to the quantitative determination sought. Detection limits for /sup 239/Pu are estimated to be about 3 mg using prompt fission neutrons and about 6 mg using delayed neutrons.

  11. Climate variability according to triple saros gravity cycles

    E-Print Network [OSTI]

    William R. Livingston

    2013-06-03

    I describe a climate model which corresponds directly to eclipse cycles. The theory is based upon a similarity between the 54 year triple saros eclipse period and the periodicity of drought. I argue that eclipse shadows are an indication of gravity cycles, and that variable lunar gravitation is the most significant aspect of the eclipse process. I reinforce the idea that lunar gravitational forcing has a profound effect on the water vapor in Earth's atmosphere, and can affect the density and location of clouds. I explore the possibility that decadal variability of ocean surface levels may be explained by triple saros gravity cycles. I point out that lunar gravitation was excluded from the most significant climate report of 2007, and that climate data contradictions have been overlooked by researchers. I focus on the value of data that has not been aggregated into global averages. I touch upon the history of global warming, and I offer predictions based upon 54 year climate periodicity.

  12. INTERPRETING THE KUIPER BELT LUMINOSITY FUNCTION. J. M. Hahn, Lunar and Planetary Institute, Houston TX 77058-1113, USA,(hahn@lpi.jsc.nasa.gov), L. Brown, ColgateUniversity, HamiltonNY 13346, USA,(labrown@center.colgate.edu).

    E-Print Network [OSTI]

    Hahn, Joseph M.

    INTERPRETING THE KUIPER BELT LUMINOSITY FUNCTION. J. M. Hahn, Lunar and Planetary Institute,(labrown@center.colgate.edu). The Kuiper Belt luminosity function m, which is the number density of Kuiper Belt Objects (KBOs) observable that increases with distance. Although most treatments of the Kuiper Belt assume a primordial radial distribution

  13. Dissolution of a Lunar Glass The Effect of and Organic Acids at 298K MJ. EICK*, D.L SPARKS, D.C. GOLDEN, and D.W. MING, Vniv. of

    E-Print Network [OSTI]

    Sparks, Donald L.

    Dissolution of a Lunar Glass The Effect of and Organic Acids at 298K MJ. EICK*, D.L SPARKS, D acid concentrations of 2 and 20 mM. The organic acids were buffered at pH 7 to separate the effect in the presence of the organic acids with citric acid having a greater effect on the rate of dissolution than

  14. THE ORIGIN OF FERROAN ANORTHOSITES AND RETHINKING LUNAR DOGMA: ION PROBE TRACE-ELEMENT ANALYSES OF MINERALS IN APOLLO 15 ROCKS --G.A. Snyder1, C. Floss2, and L.A.

    E-Print Network [OSTI]

    Floss, Christine

    OF MINERALS IN APOLLO 15 ROCKS -- G.A. Snyder1, C. Floss2, and L.A. Taylor1; 1Planetary Geosciences Institute) abundances in FAN minerals are consistent with derivation of these FANs from residual LMO liquids after 70, the evolution of the earliest lunar crust, we have initiated an ion probe study of minerals in Apollo 15 FANs

  15. Does Dissipation in AGN Disks Couple to the Total Pressure?

    E-Print Network [OSTI]

    E. T. Vishniac

    1993-08-12

    Recent work on the transport of angular momentum in accretion disks suggests that the Velikhov-Chandrasekhar instability, in which a large scale magnetic field generates small scale eddys in a shearing environment, may be ultimately responsible for this process. Although there is considerable controversy about the origin and maintenance of this field in accretion disks, it turns out that it is possible to argue, quite generally, using scaling arguments, that this process is sensitive to the total pressure in an AGN disk, rather than the pressure contributed by gas alone. We conclude that the resolution of the conceptual difficulties implied by the presence of strong thermal and viscous instabilities in radiation pressure and electron scattering dominated does not lie in models that couple the total dissipation rate to the gas pressure alone, or to some weighted mean of the gas and radiation pressures.

  16. Flow cytometric measurement of total DNA and incorporated halodeoxyuridine

    DOE Patents [OSTI]

    Dolbeare, F.A.; Gray, J.W.

    1983-10-18

    A method for the simultaneous flow cylometric measurement of total cellular DNA content and of the uptake of DNA precursors as a measure of DNA synthesis during various phases of the cell cycle in normal and malignant cells in vitro and in vivo is described. The method comprises reacting cells with labelled halodeoxyuridine (HdU), partially denaturing cellular DNA, adding to the reaction medium monoclonal antibodies (mabs) reactive with HdU, reacting the bound mabs with a second labelled antibody, incubating the mixture with a DNA stain, and measuring simultaneously the intensity of the DNA stain as a measure of the total cellular DNA and the HdU incorporated as a measure of DNA synthesis. (ACR)

  17. Flow cytometric measurement of total DNA and incorporated halodeoxyuridine

    DOE Patents [OSTI]

    Dolbeare, Frank A. (Livermore, CA); Gray, Joe W. (Livermore, CA)

    1988-01-01

    A method for the simultaneous flow cytometric measurement of the total DNA content and the level of DNA synthesis in normal and malignant cells is disclosed. The sensitivity of the method allows a study of cell cycle traverse rates for large scale cell populations as well as single cell measurements. A DNA stain such as propidium iodide or Hoechst 33258 is used as the probe for the measurement of total DNA content and a monoclonal antibody reactive with a DNA precursor such as halodeoxy-uridine (HdU), more specifically bromodeoxyuridine (BrdU) is used as a probe for the measurement of HdU or BrdU uptake by the cells as a measure of DNA synthesis.

  18. Radar Nowcasting of Total Lightning over the Kennedy Space Center

    E-Print Network [OSTI]

    Seroka, Gregory Nicholas

    2011-08-08

    intracloud (IC) and/or total (IC + CG) lightning. In addition to CG lightning, IC flashes are of great concern to KSC launch operations. Four years (2006-2009) of summer (June, July, August) daytime (about 14-00 Z) Weather Surveillance Radar ? 1988... Page 1 Florida flash density from 1986-95. ......................................................... 3 2 LDAR-I and LDAR-II site locations ........................................................ 13 3 Various estimates of LDAR-I flash...

  19. Multiple-channel, total-reflection optic with controllable divergence

    DOE Patents [OSTI]

    Gibson, David M. (Voorheesville, NY); Downing, Robert G. (Albany, NY)

    1997-01-01

    An apparatus and method for providing focused x-ray, gamma-ray, charged particle and neutral particle, including neutron, radiation beams with a controllable amount of divergence are disclosed. The apparatus features a novel use of a radiation blocking structure, which, when combined with multiple-channel total reflection optics, increases the versatility of the optics by providing user-controlled output-beam divergence.

  20. Connected Operators for the Totally Asymmetric Exclusion Process

    E-Print Network [OSTI]

    Golinelli, O; 10.1088/1751-8113/40/44/004

    2009-01-01

    We fully elucidate the structure of the hierarchy of the connected operators that commute with the Markov matrix of the Totally Asymmetric Exclusion Process (TASEP). We prove for the connected operators a combinatorial formula that was conjectured in a previous work. Our derivation is purely algebraic and relies on the algebra generated by the local jump operators involved in the TASEP. Keywords: Non-Equilibrium Statistical Mechanics, ASEP, Exact Results, Algebraic Bethe Ansatz.