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Sample search results for: a-type hyper-velocity star

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1 Jahresbericht 2008 Mitteilungen der Astronomischen Gesellschaft 92 (2009), 3551 Dr. Karl Remeis-Sternwarte
 

Summary:  Studies for eROSITA and Other X-ray Astronomical Mis- sions Tillich, Alfred: Hyper-Velocity Stars 6... , TX, USA, University of Texas: Heiße Sterne, Doppelsterne, Hyper-velocity stars Belfast, UK, Queen... , M., Scholz, R.-D.: The B-type giant HD 271791 in the Galactic halo. Linking runaway ...

  

Source: Astrophysikalisches Institut Potsdam

 

Collection: Physics

 
2 Secular and Statistical Parallax
 

Summary:  .V.M. Clube and D.H.P. Jones in 1970. Applied to a group of 59 A-type RR Lyrae variables to obtain absolute... be made longer by taking observations over multiple years. Works best with star clusters ­ The random... motions of the individual stars would (in theory) cancel out any stellar motion, leaving only the parallax

  

Source: Crenshaw, Michael - Department of Physics and Astronomy, Georgia State University

 

Collection: Physics

 
3 Jahresbericht 2009 Mitteilungen der Astronomischen Gesellschaft 93 (2010), 3145 Dr. Karl Remeis-Sternwarte
 

Summary:  .91+242546.0 ­ an A-type hyper-velocity star from the outskirts of the Galaxy. A&A 507, L37­L40 (2009) U, V., Urbaneja... , Alfred: Hyper-Velocity Stars 5.3 Habilitationen Przybilla, Norbert: Massive Stars as Tracers for Stellar... -Away" und ...

  

Source: Astrophysikalisches Institut Potsdam

 

Collection: Physics

 
4 A&A manuscript no. (will be inserted by hand later)
 

Summary:  (1988) who showed that one expects a hyper­velocity star (v ? 1000 km/s) once every 10 3 yr from... .02.1 -- 07.24.1 -- 07.25.1 -- 07.31.1) ASTRONOMY AND ASTROPHYSICS 9.10.1995 High­velocity OH/IR stars... of a small survey for OH/IR stars at high radial velocities in the Galactic centre region per­ formed

  

Source: van Langevelde, Huib Jan - Joint Institute for VLBI in Europe

 

Collection: Physics

 
5 STAR FORMATION IN THE VICINITY OF
 

Summary:  , as they are in the Orion clouds. However, there are two groupings of B­ and A­type stars located outside the main area... -- 1 -- STAR FORMATION IN THE VICINITY OF THE NORTH AMERICAN AND PELICAN NEBULAE Lynne A... . Hillenbrand, John M. Carpenter (California Institute of Technology) #12; -- 2 -- WHY STUDY YET ANOTHER ...

  

Source: Hillenbrand, Lynne - Astronomy Department, California Institute of Technology

 

Collection: Physics

 
6 Cepheids and RR Lyrae Ben Ou-Yang
 

Summary:  stars of A-type spectral class, mostly found in globular clusters · ~ 0.5 MSun and ~40 LSun · pulsation... Cepheids and RR Lyrae Ben Ou-Yang Astro 8400 #12;Cepheids and RR Lyrae ­ variable stars - Classical... to months - Type II Cepheids · are typically old, metal-poor, low-mass stars · pulsation ...

  

Source: Crenshaw, Michael - Department of Physics and Astronomy, Georgia State University

 

Collection: Physics

 
7 The A-Star Puzzle Proceedings IAU Symposium No. 224, 2004
 

Summary:  X The Pre{Main-Sequence of A-type stars Marcella Marconi 1 and Francesco Palla 2 1 INAF... . Young A-type stars in the pre{main-sequence (PMS) evolutionary phase are partic- ularly interesting... of protoplanetary growth. Finally, A-type stars are generally found in ...

  

Source: Arcetri Astrophysical Observatory - Star-Formation Group Publications

 

Collection: Physics

 
8 Introduction 1.1 Overview
 

Summary:  and 200kms \Gamma1 . Sargent (1965) estimates – Boo stars comprise 1­2 percent of A­type dwarfs... observed in mercury manganese stars. Mercury­manganese (HgMn) stars are a class of B­type main sequence... stars whose spectra exhibit strong lines of mercury and/or manganese. It is ...

  

Source: Dworetsky, Mike - University of London Observatory & Department of Physics and Astronomy, University College London

 

Collection: Physics

 
9 CTIO 1.5m CCD image of SuWt 2 red = [N II]+H#, blue = [O III]
 

Summary:  with a period of 4.9 days. Remarkably, the binary consists of two A­type stars of nearly equal brightness. We... the startling fact that the binary is double lined, consisting of two A­type stars, one with slightly broadened... . Triple system with a 3rd, hot star: -- 2a. ...

  

Source: Bond, Howard E. - Space Telescope Science Institute

 

Collection: Physics

 
10 Jahresbericht 2009 Mitteilungen der Astronomischen Gesellschaft 93 (2010), 631676 Astrophysikalisches Institut Potsdam
 

Summary:  - suchung zu den Orbits von Hyper-velocity Stars im ,,accreted satellite" Modell (Piffl, Wil- liams... massereichen Begleitern (Conrad, Scholz) ­ Messung signifi- kanter Eigenbewegungen für einige Hyper-velocity... , Ebert-Gymnasium Berlin, Okt. 09 Zinnecker: Compact Course: Molecular Clouds and Star ...

  

Source: Astrophysikalisches Institut Potsdam

 

Collection: Physics

 
11 X-ray emission from Ap/Bp stars Bridging cool and hot stars
 

Summary:  .06.2011 3 / 16 #12;X-rays from A-type stars The hottest cool stars: 'normal' A-type stars Teff 7500 - 10000... /early A-stars The coolest hot stars 'peculiar' A-type stars Teff 7500 - 14000 K, M 1.6 - ...

  

Source: Robrade, Jan - Hamburger Sternwarte, Universität Hamburg

 

Collection: Physics

 
12 Evolution of Xray activity of 1 --3 M fi latetype stars in early postmainsequence phases
 

Summary:  with masses 1:5 ! M=M fi ! 3:0 (inactive A­type stars on the main­sequence) with respect to lower mass solar... CVn­type binary. ffl 1:5 ! M=M fi ! 3:0: these stars (A­type on the main­sequence) show on average... , with respect to stars with 1:5 ! M=M fi ! 3:0 ...

  

Source: Osservatorio Astronomico Di Palermo, Giuseppe S. Vaiana

 

Collection: Physics

 
13 Convection in Astrophysics Proceedings IAU Symposium No. IAUS239, 2007
 

Summary:  in slowly rotating late A­type stars provide evidence for high­amplitude convective motions. The properties... signatures of convective motions are observed in several classes of slowly rotating A­type stars... for the atmo­ spheric dynamics of A­type stars. 2. ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
14 Draft version July 21, 2005 Preprint typeset using LATEX style emulateapj v. 5/14/03
 

Summary:  hyper-velocity stars such as the HVS is a strong gravitational interaction with the Milky Way's CBH... /14/03 THE HYPERVELOCITY STAR SDSS J090745.0+024507 IS A SHORT-PERIOD VARIABLE1 Cesar I. Fuentes2 , K. Z. Stanek2,3 , B... star SDSS J090745.0+024507 (HVS), which has a Galactic rest-frame radial velocity of ...

  

Source: Gaudi, B. Scott - Department of Astronomy, Ohio State University

 

Collection: Physics

 
15 ASP Conference Series, Vol. **VOLUME***, **YEAR OF PUBLICATION** **NAMES OF EDITORS**
 

Summary:  -sequence A-type stars with similar masses of 2.5 M . We discuss scenarios involving a third companion which... , and remarkably both components are early A-type stars. The velocity curves show both stars to have nearly... that did not interact with the A stars is ...

  

Source: Bond, Howard E. - Space Telescope Science Institute

 

Collection: Physics

 
16 Astron. Astrophys. 359, 306310 (2000) ASTROPHYSICS
 

Summary:  , there are 416 bright (V 6.5), single and normal A- type stars at distances below 100 pc ( > 10 mas... on rotation presented by Abt & Morrell (1995). Of the 416 bright single A-type stars with accurate Hipparcos... Astron. Astrophys. 359, 306­310 (2000) ASTRONOMY AND ASTROPHYSICS ...

  

Source: Astrophysikalisches Institut Potsdam, Magnetohydrodynamics Group

 

Collection: Physics

 
17 High resolution spectroscopic characterization of the FGK stars in the solar neighbourhood
 

Summary:  . Dworetsky, F. Castelli & R. Faraggiana, eds., IAU Colloq. 138: Pe- culiar versus Normal Phenomena in A-type... High resolution spectroscopic characterization of the FGK stars in the solar neighbourhood R. Mart... ) FGK stars which aim is to char- acterize the local properties of the Galaxy, in particular, the ...

  

Source: Gutiérrez, David Montes - Facultad de Ciencias Físicas, Universidad Complutense de Madrid

 

Collection: Physics

 
18 Sample Second Exam Questions Astronomy 1020 Prof. Paul J. Wiita
 

Summary:  . radiation . . . . . CNO cycle 10. Type Ia supernovae differ from Type II supernovae in that A. Type Ia SN... ) stars on the Main Sequence (M < 0.5M ) is mainly by radiation. 2. T Tauri stars are the last stage... evolving from a solar-mass star it does so very slowly at first but the ...

  

Source: Wiita, Paul J. - Department of Physics and Astronomy, Georgia State University

 

Collection: Physics

 
19 Evolution of Massive Stars Itoh and Nomoto (1987)
 

Summary:  -mass star? probably not!) complications · special supernovae like SN 1987A · Type IIb: supernovae... Evolution of Massive Stars Itoh and Nomoto (1987) Maeder (1987) 15 Msun Helium Core (8 Msun) 6... .3 EVOLUTION OF MASSIVE STARS (M > 13 M ) (CO: 13.3) · massive ...

  

Source: Bureau, Martin - Department of Physics, University of Oxford

 

Collection: Physics

 
20 A&A manuscript no. (will be inserted by hand later)
 

Summary:  bright A­type stars. Their results show that !v sin i ? of 188 normal A0­A1 stars is equal to 142 km... ;08.13.1;08.16.5;08.18.1) ASTRONOMY AND ASTROPHYSICS Loss of angular momentum of magnetic Ap stars in the pre­main sequence phase K... @astrouw.edu.pl Received ...;accepted ... Abstract. A model for ...

  

Source: Stêpieñ, Kazimierz - Astronomical Observatory, Warsaw University

 

Collection: Physics


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21 Microwave emission from Xray bright solarlike stars: The FG main sequence and beyond
 

Summary:  ­sequence A­type stars that enter (for the first time) into a regime of deep convective zones and... Microwave emission from X­ray bright solar­like stars: The F­G main sequence and beyond M. G¨udel 1... Journal 1 #12; Abstract. A sample of F and G main sequence stars and slightly evolved F and G ...

  

Source: Guedel, Manuel - Institut für Astronomie, Universität Wien

 

Collection: Physics

 
22 arXiv:0903.0383v1[astro-ph.GA]2Mar2009 The Galactic Center: A Laboratory for Fundamental Astrophysics
 

Summary:  connection between the B stars observed at the Galactic center and those detected as hyper-velocity stars... evolution, and star formation taking place in the dense star cluster around a SMBH, and (5) higher angular... ; Hornstein et al. 2007; Do et al. 2009; Meyer et al. 2008, 2009); [3] ...

  

Source: Rasio, Frederic A. - Department of Physics and Astronomy, Northwestern University

 

Collection: Physics

 
23 The detection of binary companions to subdwarf B stars C.S.Jeffery
 

Summary:  likely that some fraction of A­type main sequence stars (at least) become hot subdwarfs during a late... The detection of binary companions to subdwarf B stars C.S.Jeffery Armagh Observatory, College Hill... a spectroscopic survey to make unam­ biguous detections of cool companions to subdwarf B stars and ...

  

Source: Armagh Observatory

 

Collection: Physics

 
24 A&A manuscript no. (will be inserted by hand later)
 

Summary:  around stars earlier than B5, corre­ sponding to a mass of about 6 M fi . Conversely, A­type stars... .16.5; 13.09.6) ASTRONOMY AND ASTROPHYSICS The onset of cluster formation around Herbig Ae/Be stars Leonardo... the young stellar clusters sur­ rounding Herbig Ae/Be stars. The results ...

  

Source: Testi, Leonardo - Osservatorio Astrofisico di Arcetri

 

Collection: Physics

 
25 The formation of Be stars through close binary O.R. Pols, J. Cot'e, L.B.F.M. Waters & J. Heise
 

Summary:  2 The formation of Be stars through close binary evolution O.R. Pols, J. Cot'e, L.B.F.M. Waters & J... intermediate­mass main sequence stars are calculated. During mass transfer, the original secondaries... are rejuvenated and spun up. These rapidly rotating B stars should have either a helium star, a ...

  

Source: Pols, Onno - Sterrenkundig Instituut, Universiteit Utrecht

 

Collection: Physics

 
26 Astron. Astrophys. 326, 647654 (1997) ASTROPHYSICS
 

Summary:  W(Li), °A N(Li) v sin(i) W(Li). °A type (High res.) km/s (Low res.) °A 1ES0412+06.0A HD26923 G0V... May 1997 Abstract. We discuss the apparent widespread presence of Weak-Line T-Tauri stars (WTTS) among... with respect to young main-sequence stars in the same samples. The approach taken in most of the ...

  

Source: Micela, Giusi - Osservatorio Astronomico Di Palermo Giuseppe S. Vaiana

 

Collection: Physics

 
27 Using data from the SDSS we have modeled the spectra of some 30000 galaxies that were selected for their current
 

Summary:  for their current (strong H emission) or recent (strong H absorption from short-lived A-type stars) star formation... galactic nuclei (AGN, green) that often light up together with star forming activity. Also noteworthy... is that the galaxies with a birthrate parameter b (current star ...

  

Source: Uppsala Universitet, Department of Theoretical Physics

 

Collection: Physics

 
28 THIRD ASSIGNMENT: Sample Exam Questions DUE: Tues. Nov. 14th. Astronomy 1020, TTh at 9:30 AM Fall 2006
 

Summary:  . Energy transport in the cores of low mass (M) stars on the Main Sequence (< 0.5M ) is mainly by radiation... in thickness. 3. As a star evolves away from the main sequence its surface gets hotter. 4. When helium starts... to fuse inside a red giant evolving from a solar-mass star it does so very slowly at first but the rate

  

Source: Wiita, Paul J. - Department of Physics and Astronomy, Georgia State University

 

Collection: Physics

 
29 Astronomy & Astrophysics manuscript no. GJpraesepeII c ESO 2008 March 26, 2008
 

Summary:  of rotation on the abundances of the chemical elements of the A­type stars in the Praesepe cluster L. Fossati1... . In this #12;2 L. Fossati et al.: Effect of rotation in abundances of A­type stars in the Praesepe cluster work... .obs-hp.fr/www/guide/sophie/sophie-eng.html #12;L. Fossati et al.: Effect of ...

  

Source: Armagh Observatory

 

Collection: Physics

 
30 Planets in a Sandbox: Hubble's Renaissance of Debris
 

Summary:  to Hubble's ACS, we only had images of debris disks surrounding massive A-type stars, such as Beta Pic (75... the star AU Microscopii (AU Mic). AU Mic is a red dwarf star located approximately 30 light-years from... the Sun. Light from the star itself is masked instrumentally behind the ...

  

Source: Kalas, Paul G. - Astronomy Department, University of California at Berkeley

 

Collection: Physics

 
31 This chapter is divided into three sections. Section 7.1, `Trends', highlights possible links between factors which may govern the emergence of the HgMn phenomenon
 

Summary:  that strontium and barium were enhanced in a sample of A­type normal stars in the T eff range 8 800 ­ 10 900K... ­ ature. Magnesium shows an underabundance in HgMn stars which appears more pronounced among the four... hotter HgMn stars. Of the normal stars only Vega, being an ...

  

Source: Dworetsky, Mike - University of London Observatory & Department of Physics and Astronomy, University College London

 

Collection: Physics

 
32 arXiv:0706.0330v1[astro-ph]3Jun2007 Astronomy & Astrophysics manuscript no. 7343main c ESO 2007
 

Summary:  of magnetic fields as revealed by observations of Ap stars in open clusters and associations J. D. Landstreet1... stars during the main sequence phase is presently mostly unconstrained by observation because... of the difficulty of assigning accurate ages to known field Ap stars. Aims. We are carrying out a large survey

  

Source: Armagh Observatory

 

Collection: Physics

 
33 A&A manuscript no. (will be inserted by hand later)
 

Summary:  . References Hunger K., Groote D., 1993, in: Peculiar versus Normal Phe­ nomena in A­type and Related Stars... .01.3; 08.03.2) ASTRONOMY AND ASTROPHYSICS 14.1.1998 Research Note Properties of He­rich stars II. CNO... massive chemically peculiar (CP) stars, He­rich stars. The analysis ...

  

Source: Armagh Observatory

 

Collection: Physics

 
34 Oleg Y. Gnedin Curriculum Vitae Oleg Y. Gnedin
 

Summary:  of the Galactic Halo with Hyper-Velocity Stars", 2005, Astrophysical Journal, 634, 344­350 42. A. R. Zentner, A. V... Formation of galaxies and star clusters Neutron stars Supercomputer simulations PUBLICATIONS 62 papers... , England 1998­2001 Theory Postdoctoral Fellowship TEACHING ...

  

Source: Gnedin, Oleg Y. - Department of Astronomy, University of Michigan

 

Collection: Physics

 
35 Astronomy & Astrophysics manuscript no. Gpraesepe c ESO 2007 October 2, 2007
 

Summary:  of the evolution of A-type stars on the main sequence: comparison between observed chemical abundances... spectra of eight previously-classified Am stars, two normal A-type stars and one Blue Straggler... as an Ap (Si) star, turns out to have the abundances of a ...

  

Source: Armagh Observatory

 

Collection: Physics

 
36 A&A 493, 11091119 (2009) DOI: 10.1051/0004-6361:200810540
 

Summary:  for the X-ray emis- sion of HAeBe stars has not been identified. Similar to the B- and A-type stars... A Djie et al. 1989). Another A-type star in the Chandra field, HR 6000, shares com- mon proper motion... star not known to have companion ...

  

Source: Robrade, Jan - Hamburger Sternwarte, Universität Hamburg

 

Collection: Physics

 
37 A&A 432, 619632 (2005) DOI: 10.1051/0004-6361:20041248
 

Summary:  this was not a selection criterion. It suggests that A-type stars are less variable or absent (see also Paper... On the nature of pre-main sequence candidate stars in the Large Magellanic Cloud W. J. de Wit1, , J. P. Beaulieu... Herbig Ae/Be candidate stars looking at their (1) spectral types (2) brightness ...

  

Source: Lamers, Henny J.G.L.M. - Sterrenkundig Instituut, Universiteit Utrecht

 

Collection: Physics

 
38 Jahresbericht 2007 Mitteilungen der Astronomischen Gesellschaft 91 (2008), 2941 Dr. Karl Remeis-Sternwarte
 

Summary:  and in NGC 6822 Tillich, Alfred: Hyper-Velocity Stars 6 Tagungen, Projekte am Institut und Beobachtungszeiten... B Sterne Austin, TX, USA, University of Texas: Heiße Sterne, Doppelsterne, Hyper-velocity stars Belfast, UK... University: Schwarze Löcher, ISM, Hyper ...

  

Source: Astrophysikalisches Institut Potsdam

 

Collection: Physics

 
39 Where is the Information Located in Stellar Spectra? Howard E. Bond
 

Summary:  stars in resolved populations. #12;­ 8 ­ Fig. 2.-- Wavelength dependence upon temperature changes in A-type... of 500 K, at constant gravity and metallicity in A-type dwarfs. At 10,000 K most of the optical band... the temperatures of OB stars and the gravities of A-K stars. A ...

  

Source: Bond, Howard E. - Space Telescope Science Institute

 

Collection: Physics

 
40 THIRD ASSIGNMENT: Sample Exam Questions DUE: Wed. Nov. 15th Astronomy 1020, MW at noon Fall 2006
 

Summary:  from Type II supernovae in that A. Type Ia SN are all of about the same luminosity, while Type II... . Energy transport in the cores of high mass (O) stars on the Main Sequence (M < 15M ) is mainly... by radiation. 2. T Tauri stars are the last stage of protostellar evolution and are located above

  

Source: Wiita, Paul J. - Department of Physics and Astronomy, Georgia State University

 

Collection: Physics


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41 Why are magnetic Ap stars slowly rotating? K. Stepie'n 1
 

Summary:  Phenomena in A­type and Related Stars, eds.: M.M. Dworetsky, F. Castelli and R. Farraggiana, A.S.P. Conf... , in Peculiar versus Normal Phenomena in A­type and Related Stars, eds.: M.M. Dworetsky, F. Castelli and R... Why are magnetic Ap stars slowly rotating? K. St¸epie'n 1 Warsaw ...

  

Source: Stêpieñ, Kazimierz - Astronomical Observatory, Warsaw University

 

Collection: Physics

 
42 Red Giant Red Giant White Giant
 

Summary:  High mass star that consumes hydrogen rapidly. White giants, such as Deneb in the constellation Cygnus... , appear to burn brightly. Mass: 4 - 10 SM StarPower Points: 9 High mass stars consume hydrogen rapidly... reactions. Mass: 4 - 10 SM StarPower Points: 9 High mass star that consumes ...

  

Source: Bechtold, Jill - Steward Observatory & Department of Astronomy, University of Arizona

 

Collection: Physics

 
43 The Ghost of Sagittarius and Lumps in the Halo of the Milky Way Heidi Jo Newberg1,2
 

Summary:  the equatorial ring than in Paper I. We extend the methods of Paper I, which used faint blue stars with A-type... and magnitudes of five million stars detected in the Sloan Digital Sky Survey. Most of these stars are within 1... .26 of the celestial equator. We present color-magnitude diagrams (CMDs) for ...

  

Source: Varela, Carlos - Department of Computer Science, Rensselaer Polytechnic Institute

 

Collection: Computer Technologies and Information Sciences

 
44 Annu. Rev. Astron. Astrophys. 2001. 39:54980 Copyright c 2001 by Annual Reviews. All rights reserved
 

Summary:  ) and the Herbig Ae stars, which are a few times more massive than the Sun and which will evolve into A-type main... with special clarity. One of the most interesting Association members is an A-type star, HR 4796. Initially... is the dustiest A-type star in the ...

  

Source: Reipurth, Bo - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
45 Astronomy & Astrophysics manuscript no. 14027 c ESO 2010 April 20, 2010
 

Summary:  the remarkable A-type star HR 8799 (Research Note) J. Robrade and J.H.M.M. Schmitt Universit¨at Hamburg... /late A-type stars a strong decline in magnetic activity occurs towards hotter stars because... mid A-type stars to be virtually X-ray ...

  

Source: Robrade, Jan - Hamburger Sternwarte, Universität Hamburg

 

Collection: Physics

 
46 Division of Astronomy and Space Physics Stellar Magnetic Fields
 

Summary:  on the surface of a magnetic A-type star (Kochukhov et al. 2004, A&A, 424, 935; Lüftinger et al. 2010, A&A, 509... , and structure formation. Surface and circumstellar magnetic field topology of the massive star HD37776 studied... ) and field orientation (lower panel) reconstructed from the spectropolarimetric ...

  

Source: Uppsala Universitet, Department of Theoretical Physics

 

Collection: Physics

 
47 SUMMARY FOR COOL STARS 13: INTERNAL AND EXTERNAL CONNECTIONS Je#rey L. Linsky 1
 

Summary:  constraints on models for the decay phase of flares. 3.8. Do A­type stars have hot outer atmospheres? Beate... ): There are 73 apparently sin­ gle A­type stars in the ROSAT All­sky Survey (RASS) pointing error boxes. Some... 1 SUMMARY FOR COOL STARS 13: INTERNAL AND EXTERNAL ...

  

Source: Linsky, Jeffrey L. - JILA & Center for Astrophysics and Space Astronomy, University of Colorado at Boulder

 

Collection: Physics

 
48 Jahresbericht 2008 Mitteilungen der Astronomischen Gesellschaft 92 (2009), 613638 Universitts-Sternwarte Mnchen
 

Summary:  Stars, OC member of IAU Commision 36 (Theory of Stellar Atmospheres) under Division IV. Dr. S. Seitz... Stars in the Early Universe (Puls, mit de Koter (Amsterdam) und Langer (Bonn)) · Infrarot... -Kollaboration) ­ Star formation at 0 < z < 1.5 (Drory N. mit Bauer A. (UT Austin & Gemini Observatory, Chile

  

Source: Astrophysikalisches Institut Potsdam

 

Collection: Physics

 
49 THIRD ASSIGNMENT: Sample Exam Questions Astronomy 1020 Fall 2005
 

Summary:  from Type II supernovae in that A. Type I SN are usually several times more luminous B. Type I SN have... (M) stars on the Main Sequence (< 0.5M ) is mainly by radiation. 2. The Milky Way galaxy contains... a stellar disk roughly 30 kpc in diameter and roughly 500 pc in thickness. 3. As a star evolves ...

  

Source: Wiita, Paul J. - Department of Physics and Astronomy, Georgia State University

 

Collection: Physics

 
50 High resolution spectroscopic characterization of the FGK stars in the Solar neighbourhood
 

Summary:  Phenomena in A-type and Related Stars, volume 44 of Astronomical Society of the Pacific Conference Series... High resolution spectroscopic characterization of the FGK stars in the Solar neighbourhood R. M... long-term high resolution spectro- scopic study of nearby (d < 25 pc) FGK stars which aim

  

Source: Gutiérrez, David Montes - Facultad de Ciencias Físicas, Universidad Complutense de Madrid

 

Collection: Physics

 
51 Astrophysics and Space Science DOI 10.1007/s---
 

Summary:  time, being of the order of 500 mil- lion years for an early A-type star. Here we put forward... Astrophysics and Space Science DOI 10.1007/s·····-···-····-· Target star catalogue for Darwin... present and discuss the criteria for selecting poten- tial target stars suitable for the search for ...

  

Source: Kaltenegger, Lisa - Harvard-Smithsonian Center for Astrophysics

 

Collection: Physics

 
52 REVISED MK SPECTRAL ATLAS FOR STARS EARLIER THAN THE SUN
 

Summary:  Lep: An A­Type Shell Star . . . . . . . . . . . . . . . . . . . . . . . 8 Plate. 23. Two Diffuse K... with objective prism cameras. Plate. 22. 17 Lep: An A­Type Shell Star The exceedingly strong shell absorptions... REVISED MK SPECTRAL ATLAS FOR STARS EARLIER THAN THE SUN W. W. Morgan ...

  

Source: Dworetsky, Mike - University of London Observatory & Department of Physics and Astronomy, University College London

 

Collection: Physics

 
53 Improved Approximation Bounds for the Group Steiner Problem \Lambda C. S. Helvig Gabriel Robins Alexander Zelikovsky y
 

Summary:  reuse an edge (u; v): (a) Type­(I) paths terminate at level­1 intermediate nodes below v (there... node is a leaf. We define d­stars to be rooted trees of depth at most d. The rest of this section... will show that for any arbitrary (but henceforth fixed) tree T with root r, there exists a low­cost ...

  

Source: Zelikovsky, Alexander - Department of Computer Science, Georgia State University

 

Collection: Computer Technologies and Information Sciences

 
54 Honors Seminar 259 --cheat sheet for 12/8/2008 --Andrew Baker Kalas et al. (2008)
 

Summary:  their central stars? 2. What are the advantages and disadvantages of looking for planets around A stars (a type... mechanisms for Fomalhaut b? Key terms: · abundance = fraction of a star's, planet's, or gas cloud's mass... of temperature with time for a young star ...

  

Source: Baker, Andrew J. - Department of Physics and Astronomy, Rutgers University

 

Collection: Physics

 
55 F. Combes, D. Barret, T. Contini, F. Meynadier and L. Pagani (eds) TURBULENT CONVECTION AND DYNAMO ACTION IN
 

Summary:  & Toomre 2002; Brun et al. 2004) and of the convective core of an A-type stars (Browning et al. 2004; Brun... respectively the G and A-type stars as good proxy for envelope and core convection stars, thanks to the large... to be simplified version of the convective region of a ...

  

Source: Brun, Allan Sacha - Service d'Astrophysique, French Center for Atomic Research CEA

 

Collection: Physics

 
56 Abundance analyses of cool extreme helium stars Gajendra Pandey,1P
 

Summary:  . These lines are much stronger when compared with those observed in early A-type and late B-type normal stars... (Fig. 1). No lines of He II were found. Lines of all elements expected and observed in early A-type... Abundance analyses of cool extreme helium stars Gajendra Pandey,1P N. Kameswara Rao,2 David L

  

Source: Armagh Observatory; Jeffery, Simon - Armagh Observatory

 

Collection: Physics

 
57 MAD Science Demonstration Proposal R136: The young massive star cluster at the core of 30 Doradus
 

Summary:  to at least 2.8M [10], corresponding to mid A-type stars on the main sequence. At the distance of the LMC (50... MAD Science Demonstration Proposal R136: The young massive star cluster at the core of 30 Doradus... joanasba@astro.up.pt N. Bastian UCL bastian@star.ucl.ac.uk Y. Beletsky ESO ybialets@eso.org B. ...

  

Source: Liske, Jochen - European Southern Observatory

 

Collection: Physics

 
58 Celestial Hemisphere Model An in-class display for the Position and Motion Lecture Tutorials, (Figure 1, pg 1; Figure 1,
 

Summary:  Sky Motion by Predicting Star Locations in the Planetarium, by Kenneth S. Coles; Geoscience department... of Dome 1. On a transparency, print the following: North Star, Star A, Star B, Horizon, Horizon, Horizon... . This will be the North Star. (The groove used for the North ...

  

Source: Feldmeier, John - Department of Physics and Astronomy, Youngstown State University

 

Collection: Physics

 
59 Comparison to the literature The abundance patterns for each star taken from this thesis and from the literature
 

Summary:  for a selection of A­type stars which included ` Leo. Lemke found that, as in ` Leo, strontium was overabundant... Chapter 6 Comparison to the literature The abundance patterns for each star taken from this thesis... and from the literature can be found in the sections which follow. These results are examined ...

  

Source: Dworetsky, Mike - University of London Observatory & Department of Physics and Astronomy, University College London

 

Collection: Physics

 
60 Astronomy & Astrophysics manuscript no. paperfin March 14, 2003 (DOI: will be inserted by hand later)
 

Summary:  ­ nomena in A­type and related stars. A. S. P. Conferences Series Vol. 44, p. 87 Kurucz R. L., & Avrett E... later) Spectroscopy of early­type star candidates in M 33 and NGC 6822. II # G. Catanzaro 1,2 , L... March 2003 Abstract. We present ground­based spectra of early­type star candidates in the ...

  

Source: Bianchi, Luciana - Center for Astrophysical Sciences, Johns Hopkins University

 

Collection: Physics


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61 P1: ARK/dat P2: ARK/plb QC: ARK June 18, 1998 21:30 Annual Reviews AR06207
 

Summary:  . Astrophys. 1998. 36:233--66 Copyright c # 1998 by Annual Reviews. All rights reserved HERBIG AE/BE STARS L... @ster.kuleuven.ac.be KEY WORDS: pre--main­sequence stars, circumstellar matter, protoplanetary systems, stellar evolution... ABSTRACT We review the wide range of observed properties of Herbig Ae/Be stars and try to ...

  

Source: Reipurth, Bo - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
62 CU 8: ASTROPHYSICAL PARAMETERS Work Breakdown Structure
 

Summary:  -atmosphere and stellar-structure theory. Examples for pos- sibly relevant effects are diffusion of elements in A-type... stars for Gaia- wide use. This is a formidable task requiring expertise of various stellar com- munities... - mental and standard stars cannot be used for a direct calibration. There is an online version of ...

  

Source: Korn, Andreas - Uppsala Astronomical Observatory

 

Collection: Physics

 
63 A&A 389, 874888 (2002) DOI: 10.1051/0004-6361:20020648
 

Summary:  to display clearly visible hydrogen ab- sorption lines classifying them as foreground A-type stars, confirmed... On the massive star contents of Cygnus OB2 F. Comer´on1, A. Pasquali2, G. Rodighiero3, V. Stanishev4, E. De... at constraining its massive star contents. Our goal is to establish a nearly ...

  

Source: De Filippis, Elisabetta - Dipartimento di Scienze Fisiche, Università degli Studi di Napoli "Federico II"

 

Collection: Physics

 
64 Astronomy & Astrophysics manuscript no. (will be inserted by hand later)
 

Summary:  to display clearly visible hydrogen absorption lines classifying them as foreground A-type stars, con#12;rmed... Astronomy & Astrophysics manuscript no. (will be inserted by hand later) On the massive star... of a large area centered on the Cygnus OB2 association aiming at constraining its massive star ...

  

Source: Comerón, Fernando - European Southern Observatory, Garching

 

Collection: Physics

 
65 The G Dwarf Problem Exists in Other Galaxies Guy Worthey 1
 

Summary:  sensitive to hot stars does not jibe with the predicted number of A­type horizontal branch stars. The number... of that excess is due to metal­poor main sequence stars. Second, the models do not reproduce metal... ­sensitive optical absorption features that arise mainly from red giant ...

  

Source: Worthey, Guy - Department of Physics and Astronomy, Washington State University

 

Collection: Physics

 
66 HOT MASSIVE STARS IN LOCAL GROUP GALAXIES LUCIANA BIANCHI 1;2 , SALVATORE SCUDERI 3
 

Summary:  of using UV filters to detect the very hot stars, where the B­A type population dominating the V... HOT MASSIVE STARS IN LOCAL GROUP GALAXIES LUCIANA BIANCHI 1;2 , SALVATORE SCUDERI 3 1 JHU Center... of Catania, Italy ABSTRACT. Massive stars play a fundamental role in the origins of the ...

  

Source: Bianchi, Luciana - Center for Astrophysical Sciences, Johns Hopkins University

 

Collection: Physics

 
67 THE ASTROPHYSICAL JOURNAL, 545:449453, 2000 December 10 2000. The American Astronomical Society. All rights reserved. Printed in U.S.A.(
 

Summary:  - type stars (FÈM types) is always negligible. For A-type stars, so far not known to be X-ray emitters... may be present in the case of very faint X-ray sources (L X \ 1027ergs s~1). For A-type stars, HRI... ; accepted 2000 July 25 ABSTRACT Comparing measured and estimated count rates of ...

  

Source: Micela, Giusi - Osservatorio Astronomico Di Palermo Giuseppe S. Vaiana

 

Collection: Physics

 
68 X-RAY EMISSION FROM EARLY-TYPE STARS IN THE ORION NEBULA CLUSTER B. Stelzer,1, 2
 

Summary:  X-RAY EMISSION FROM EARLY-TYPE STARS IN THE ORION NEBULA CLUSTER B. Stelzer,1, 2 E. Flaccomio,2 T... February 1; accepted 2005 May 24 ABSTRACT The X-ray properties of twenty $1 Myr old O, B, and A stars... of simple theories for X-ray emission, we define two classes separated at spectral type B4: hotter stars

  

Source: Micela, Giusi - Osservatorio Astronomico Di Palermo Giuseppe S. Vaiana

 

Collection: Physics

 
69 TOWARD UNDERSTANDING THE B[e] PHENOMENON. I. DEFINITION OF THE GALACTIC FS CMa STARS
 

Summary:  HAeBe are mostly A-type stars with ``flat'' IR excesses, typical of preYmain- sequence objects... TOWARD UNDERSTANDING THE B[e] PHENOMENON. I. DEFINITION OF THE GALACTIC FS CMa STARS A. S... of early-type stars. It was discovered in our Galaxy 30 years ago in the course of the early exploration

  

Source: Miroshnichenko, Anatoly - Department of Physics and Astronomy, University of North Carolina at Greensboro

 

Collection: Physics

 
70 Astronomy & Astrophysics manuscript no. (will be inserted by hand later)
 

Summary:  abundances for hot A­type stars is not trivial (small equivalent widths, large ionization correction, full... .15) found by these authors for A­type stars is compatible with the meteoritic value plus the un­ certainties... main sequence G stars have, within the errors, the same Li ...

  

Source: Arcetri Astrophysical Observatory - Star-Formation Group Publications

 

Collection: Physics

 
71 Accepted to ApJSuppl, COUP Special Issue X-ray emission from early-type stars
 

Summary:  Accepted to ApJSuppl, COUP Special Issue X-ray emission from early-type stars in the Orion Nebula... old O, B, and A stars of the Orion Trapezium are examined with data from the Chandra Orion Ultradeep... at spectral type B4: hotter stars have strong winds that may give rise to X-ray emission in small- or large

  

Source: Osservatorio Astronomico Di Palermo, Giuseppe S. Vaiana

 

Collection: Physics

 
72 A&A 385, 143151 (2002) DOI: 10.1051/0004-6361:20020116
 

Summary:  1999b: A-type, Andrievsky et al. 2001: F-type, Hill & Spite 1999: K-type). Obviously, in trying... discussed, the most sig- nificant signature is that of nitrogen: Among SMC A- type supergiants Venn (1999b... Pristine CNO abundances from Magellanic Cloud B stars I. The LMC cluster NGC 2004 with UVES A. ...

  

Source: Korn, Andreas - Uppsala Astronomical Observatory

 

Collection: Physics

 
73 A&A 457, 223235 (2006) DOI: 10.1051/0004-6361:20065006
 

Summary:  -ray temperature for the HAeBe stars (filled squares), the MS B-type stars (filled triangles) and the ONC B/A-type... the others, because they do not in- clude A-type stars. A few HAeBe stars have been reported to be very lumi... On the origin of the X-ray emission ...

  

Source: Micela, Giusi - Osservatorio Astronomico Di Palermo Giuseppe S. Vaiana

 

Collection: Physics

 
74 Astronomy & Astrophysics manuscript no. 5006 c May 24, 2006
 

Summary:  ) and the ONC B/A­type stars (filled circles). Lower mass companions to each of these groups are represented... ­ray emission from Herbig Ae/Be stars B. Stelzer 1 , G. Micela 1 , K. Hamaguchi 2 , and J. H. M. M. Schmitt 3 1... ­02­2006> / Accepted <18­05­2006> ABSTRACT Context. Herbig Ae/Be stars ...

  

Source: Osservatorio Astronomico Di Palermo, Giuseppe S. Vaiana

 

Collection: Physics

 
75 STAR Search STAR Search5 30
 

Summary:  STAR Search "" STAR STAR Search5 30 Tokyo Tech STAR STAR Search... 8 2011 4 183,127 5,993 140 4 Tokyo Tech OCW 2011 4 914 OCW Tokyo Tech STAR Tokyo... Tech OCW T2R2 Google Web T2R2 Tokyo Tech OCW Web #12; ...

  

Source: Tanaka, Jiro - Department of Computer Science, University of Tsukuba

 

Collection: Computer Technologies and Information Sciences

 
76 Mon. Not. R. Astron. Soc. 401, L44L47 (2010) doi:10.1111/j.1745-3933.2009.00783.x The discovery of a 21-kG magnetic field in the Ap star BD+0
 

Summary:  -temperature A-type stars (below 8000 K), the Balmer line profiles are also good indicators of effective... of a 21-kG magnetic field in the Ap star BD+0 4535 V. G. Elkin,1 D. W. Kurtz,1 C. Nitschelm2 and E. Unda... found that the Ap star BD+0 4535 has a very strong magnetic field. From Zeeman components of ...

  

Source: Nitschelm, Christian - Departement Wiskunde & Informatica, Universiteit Antwerpen

 

Collection: Physics

 
77 Enlighten Maryland Grades 6-12 (p. 1) This program will introduce students to light pollution and its effects on the environment and astronomical
 

Summary:  the Good Fixtures are Horizontal Cut-Off--a type of light fixture that does not allow the light to shine... to participate in original scientific research by performing star counting experiments. With your help, Enlighten... is in Cygnus, and the Great Square is in Pegasus. Constellation -- a group of stars ...

  

Source: Mutchler, Max - Space Telescope Science Institute

 

Collection: Physics

 
78 arXiv:0905.0864v2[astro-ph.SR]31May2009 Astronomy & Astrophysics manuscript no. 11533 c ESO 2009
 

Summary:  the A-type star HD 162725, for which pre- vious measurements exist both with FORS 1 and later with ESPa... Ae/Be stars and stars with debris disks S. Hubrig1,2, B. Stelzer3, M. Sch¨oller4, C. Grady5, O. Sch... . Recently, evidence for the presence of weak magnetic fields in Herbig Ae/Be ...

  

Source: Osservatorio Astronomico Di Palermo, Giuseppe S. Vaiana

 

Collection: Physics

 
79 Astronomy & Astrophysics manuscript no. KoehlerOrion c July 31, 2006
 

Summary:  Astronomy & Astrophysics manuscript no. Koehler­Orion c # ESO 2006 July 31, 2006 Binary Stars... We report on a high­spatial­resolution survey for binary stars in the periphery of the Orion Nebula... Cluster, at 5--15 arcmin (0.65 -- 2 pc) from the cluster center. We observed 228 stars with adaptive

  

Source: Köhler, Rainer - Zentrum für Astronomie der universität Heidelberg, Landessternwarte Heidelberg-Königstuhl

 

Collection: Physics

 
80 Astronomy & Astrophysics manuscript no. Koehler-Orion c ESO 2006 July 31, 2006
 

Summary:  Astronomy & Astrophysics manuscript no. Koehler-Orion c ESO 2006 July 31, 2006 Binary Stars... -spatial-resolution survey for binary stars in the periphery of the Orion Nebula Cluster, at 5­15 arcmin (0.65 ­ 2 pc) from... the cluster center. We observed 228 stars with adaptive optics systems, in order to find companions

  

Source: Köhler, Rainer - Zentrum für Astronomie der universität Heidelberg, Landessternwarte Heidelberg-Königstuhl

 

Collection: Physics


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81 Provably Good Routing Tree Construction with MultiPort Terminals \Lambda
 

Summary:  root r (a) (b) l Figure 5: Triangles represent depth­first ­ordered sub­ trees. (a) Type­(i) paths... or depth two. We define d­stars to be rooted trees of depth of at most d (see Figure 3(a)­(b)). Our... motivation for defining d­stars is two­fold: (i) they can be used to approximate optimal group ...

  

Source: Zelikovsky, Alexander - Department of Computer Science, Georgia State University

 

Collection: Computer Technologies and Information Sciences

 
82 ccsd-00012557,version1-24Oct2005 Stars with the B[e] phenomenon
 

Summary:  No (Balona 1992) A-type or earlier + emission lines Yes Yes (this study + Hummel et al. 1999) Star... ccsd-00012557,version1-24Oct2005 Stars with the B[e] phenomenon ASP Conference Series, Vol... . **VOLUME**, 2005 Michaela Kraus & Anatoly S. Miroshnichenko The spectrum of the B[e] star BAL224. C

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
83 Mon. Not. R. Astron. Soc. (2007) doi:10.1111/j.1365-2966.2007.12325.x Establishing the nature of companion candidates to X-ray-emitting late
 

Summary:  -ray emission of MS late B-type and early A-type stars is commonly attributed to unresolved late-type companions... : (i) an adap- tive optics search for previously unresolved late-type companions to B- and A-type stars... . 5 DISCUSSION The detection of X-ray emission from late B-type and early ...

  

Source: Osservatorio Astronomico Di Palermo, Giuseppe S. Vaiana

 

Collection: Physics

 
84 arXiv:1003.2463v1[astro-ph.SR]12Mar2010 The Massive Star Forming Region Cygnus OB2. II. Integrated
 

Summary:  -ray emission from late B and A-type stars have attributed this to coronal emission from unresolved late... -type stars, and also most early A-type stars. Finally, crowding is likely to have only a minor effect... Drew et al. (2008) have since uncovered a population of ...

  

Source: Armagh Observatory

 

Collection: Physics

 
85 THE ASTROPHYSICAL JOURNAL, 491:885890, 1997 December 20 1997. The American Astronomical Society. All rights reserved. Printed in U.S.A.(
 

Summary:  Èmain-sequence A-type stars does not show any signiÐcant variation during much of the preÈmain- sequence evolution... the case, we must accept the idea that the CS environment of all preÈmain-sequence A-type stars is somewhat... . All rights reserved. Printed in U.S.A.( THE EVOLUTIONARY STATUS OF UX ...

  

Source: Mannings, Vince - Infrared Processing and Analysis Center, California Institute of Technology

 

Collection: Physics

 
86 AGB stars evolution and nucleosynthesis Falk Herwig
 

Summary:  in the simulations of shallow surface convection of A-type stars. The new He-shell flash convection simulations... AGB stars evolution and nucleosynthesis Falk Herwig Theoretical Astrophysics Group, LANL, Los... Alamos, NM 87544, USA E-mail: FHerwig@lanl.gov Asymptotic Giant Branch stars are the main nuclear

  

Source: Herwig, Falk - Department of Physics and Astronomy, University of Victoria

 

Collection: Physics

 
87 Astron. Nachr. / AN 999, No. 88, 1 7 (2006) / DOI please set DOI! The exceptional Herbig Ae star HD 101412
 

Summary:  are not progenitors of Ap stars. Generally, stellar magnetic fields in A-type stars on the main sequence... Astron. Nachr. / AN 999, No. 88, 1 ­ 7 (2006) / DOI please set DOI! The exceptional Herbig Ae star... spots in a Herbig star S. Hubrig1, , M. Sch¨oller2 , I. Savanov3 , J. F. ...

  

Source: Astrophysikalisches Institut Potsdam, Magnetohydrodynamics Group

 

Collection: Physics

 
88 Astron. Nachr. / AN XXX, No. X, 1 7 (2011) / DOI please set DOI! Magnetic fields of Ap stars as a result of Tayler instability
 

Summary:  of field strengths, topologies, and rotational periods. Only a fraction of roughly 10% of all A-type stars... Astron. Nachr. / AN XXX, No. X, 1 ­ 7 (2011) / DOI please set DOI! Magnetic fields of Ap stars... words stars: chemically peculiar, magnetic fields ­ instabilities Ap star ...

  

Source: Astrophysikalisches Institut Potsdam, Magnetohydrodynamics Group

 

Collection: Physics

 
89 Altair -the hottest 'cool' star in X-rays J. Robrade and J.H.M.M. Schmitt
 

Summary:  -Newton observation of Altair and study the coronal X-ray properties of a late A-type star for the first time... of spectral type, at least for late A-type to late K-type stars. A detailed discussion of the applied methods... Altair - the hottest 'cool' star in X-rays J. Robrade and ...

  

Source: Robrade, Jan - Hamburger Sternwarte, Universität Hamburg

 

Collection: Physics

 
90 A&A manuscript no. (will be inserted by hand later)
 

Summary:  -main sequence Herbig Ae stars exhibit conspicuous signs of winds and activity, while main sequence A-type stars... .09.1)08.(08.13.2;08.18.1) Mass-loss induced instabilities in fast rotating stars F. Ligni#18;eres 1;2 , C. Catala 3 , and A... 2000 / Accepted ?? Abstract. To explain the origin of Herbig Ae/Be ...

  

Source: Lignières, François - Astronomy Unit, Queen Mary and Westfield College

 

Collection: Physics

 
91 Mon. Not. R. Astron. Soc. 000, 000000 (0000) Printed 15 February 2004 (MN LATEX style file v2.2) The pre-main sequence binary HK Ori -Spectro-astrometry and
 

Summary:  ) and 24 CVn (below, A-type). The blue spectrum of HK Ori clearly resembles that of an A star. polarization... inconclusive. It is dependent on the trivial, but unan- swered, question on whether the A-type or the G... that the blue spectrum reveals an A-type object. Neutral metallic absorption lines (Ca I and ...

  

Source: Davies, John Keith - Institute for Astronomy, Royal Observatory Edinburgh, University of Edinburgh

 

Collection: Physics

 
92 Annu. Rev. Astron. Astrophys. 2004. 42:685721 doi: 10.1146/annurev.astro.42.053102.134111
 

Summary:  -IR excess emission from the A-type star Pictoris which Smith & Terrile (1984) revealed to be one... -Magnitude Diagram Jura et al. (1998) plotted 1000 A-type stars in the Yale Bright Star Catalog with mv < 6... the luminosity corresponding to the zero-age main sequence (ZAMS) for ...

  

Source: Reipurth, Bo - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
93 StarVis: A Configural Decision Support Tool for Schedule Management of Multiple Unmanned Aerial Vehicles
 

Summary:  StarVis: A Configural Decision Support Tool for Schedule Management of Multiple Unmanned Aerial... 2 #12; StarVis: A Configural Decision Support Tool for Schedule Management of Multiple Unmanned... performing a timecritical targeting mission. A configural display common to both DSTs, called ...

  

Source: Cummings, Mary "Missy" - Department of Aeronautics and Astronautics, Massachusetts Institute of Technology (MIT)

 

Collection: Engineering

 
94 Variable stars in M31 THIS chapter presents the variable stars that are detected by our microlensing survey to-
 

Summary:  to those of the Mira's and A-type semiregu- lars (SRAs, quite regular SRs), since the cuts in R @ and 3... CHAPTER 4 Variable stars in M31 THIS chapter presents the variable stars that are detected by our... microlensing survey to- wards M31. Tens of thousands of high-quality variable star lightcurves are ...

  

Source: Groningen, Rijksuniversiteit - Centre for Ecological and Evolutionary Studies, Department of Marine Benthic Ecology and Evolution,

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
95 arXiv:astro-ph/0604590v127Apr2006 Draft version April 15, 2009
 

Summary:  Uncertainty Assumed Teff (K) (%) 50000 4.0 20000 2.5 10000 1.0 6000 0.5 4000 0.5 3500 1.0 3000 1.5 2000 4.0 A-type... emulateapj v. 6/22/04 AN EMPIRICAL UBVRIJHK COLOR-TEMPERATURE CALIBRATION FOR STARS Guy Worthey and Hyun... version April 15, 2009 ABSTRACT A collection of Johnson/Cousins photometry for stars with known [Fe

  

Source: Lee, Hyun-chul - Department of Physics and Astronomy, Washington State University

 

Collection: Physics

 
96 A.C. Editor, B.D. Editor & C.E. Editor, eds. DOI: 00.0000/X000000000000000X Magnetic fields in A stars
 

Summary:  to emerge. Keywords. stars: magnetic fields, MHD, stars: A-type 1. Introduction After several decades... ) explicitly addresses A-type stars, most of what I write will apply also to the fields of the magnetic Bp... in A stars David Moss Department of Mathematics, ...

  

Source: Moss, David - Department of Mathematics, University of Manchester

 

Collection: Physics

 
97 Gusty Winds: H Profile Variability in A-Type Supergiant Stars
 

Summary:  Gusty Winds: H Profile Variability in A-Type Supergiant Stars Nancy Morrison Ritter Observatory... as the star evolves? #12;Study of variability in A-type supergiants: Stahl, Kaufer, et al. (Heidelberg)2... on A-type supergiants I: Deneb ( Cyg, A2 Ia) · Basic H profile is P Cygni shape ...

  

Source: Morrison, Nancy - Department of Physics and Astronomy, University of Toledo

 

Collection: Physics

 
98 THE ASTRONOMICAL JOURNAL, 120:26152626, 2000 November 2000. The American Astronomical Society. All rights reserved. Printed in U.S.A.(
 

Summary:  *[r* versus u*[g* diagram is made of stars with spectral types ranging from F to late K. A-type stars... rights reserved. Printed in U.S.A.( OPTICAL AND INFRARED COLORS OF STARS OBSERVED BY THE TWO MICRON ALL... of stars matched in the Two Micron All Sky Survey (2MASS) and the Sloan ...

  

Source: Iveziæ, Željko - Department of Astronomy, University of Washington at Seattle

 

Collection: Physics

 
99 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 111:15151523, 1999 December 1999. The Astronomical Society of the Pacic. All rights reserved. Printed in U.S.A.(
 

Summary:  and will not be plotted. The relationship holds not only for the B- and A-type objects in 1999 PASP, 111:1515È1523 #12... and accurate technique of predicting angular sizes is presented for main-sequence stars, giant and supergiant... stars, and more evolved sources such as carbon stars and Mira variables. ...

  

Source: Sicardy, Bruno - Observatoire de Paris; van Belle, Gerard - European Southern Observatory

 

Collection: Physics

 
100 PRISTINE CNO ABUNDANCES FROM MAGELLANIC CLOUD B STARS. II. FAST ROTATORS IN THE LARGE MAGELLANIC CLOUD CLUSTER NGC 20041
 

Summary:  in this paper. For SMC A-type supergiants, Venn (1999) reports a wide range of nitrogen enhancements... PRISTINE CNO ABUNDANCES FROM MAGELLANIC CLOUD B STARS. II. FAST ROTATORS IN THE LARGE MAGELLANIC... main-sequence B stars in the young Large Magellanic Cloud cluster NGC 2004. All three targets have

  

Source: Korn, Andreas - Uppsala Astronomical Observatory

 

Collection: Physics


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