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Sample search results for: aaomega mass-to-light profiles

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1 Optimum spectroscopic instrument for GAMA AAOmega is the upgraded multi-object spectrograph fed from the 2dF robotic fibre po-
 

Summary:  deg2 , respectively. Right panel: The 2PIGG group mass-to-light ratio (M/L) as a function of group... of mass-to-light ratios from colours or spectra. The present compendium of data probes to 108.5M... Optimum spectroscopic instrument for GAMA AAOmega is the upgraded multi-object spectrograph fed

  

Source: Liske, Jochen - European Southern Observatory

 

Collection: Physics

 
2 Weak lensing analysis of Cl 1358+62 ? Henk Hoekstra a;1 , Marijn Franx a , Konrad Kuijken a , and
 

Summary:  tangential dis­ tortion g L from the observed radial luminosity profile, assuming a constant mass­to­light... /s). We estimate the mass­to­light ratio to be (90 \Sigma 13)h 50 M fi =L V fi , consistent with being... that the orbits of the galaxies are not isotropic. To estimate the mass­to­light ratio, ...

  

Source: Hoekstra, Henk - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
3 Weak lensing study of low mass galaxy groups: implications for\Omega m
 

Summary:  profile, under the assumption that the mass­ to­light ratio is constant with radius. (b) The ratio... on the first measurement of the average mass and mass­to­light ratio of galaxy groups by analysing the weak... estimate. Under the assumption that the light traces the mass, we find an average ...

  

Source: Hoekstra, Henk - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
4 MICHAEL WILLIAMS williams@astro.ox.ac.uk, MARTIN BUREAU AND MICHELE CAPPELLARI UNIVERSITY OF OXFORD
 

Summary:  equal dynamical mass-to-light ratios. Many authors have argued that S0 galaxies are the faded direct... for a given dynamical mass than spirals and should have higher mass-to-light ratios on average. They should... by assuming a constant dynamical mass-to-light ratio and axisymmetry. This allowed us to compute a model

  

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

 

Collection: Physics

 
5 Mon. Not. R. Astron. Soc. 371, 15371549 (2006) doi:10.1111/j.1365-2966.2006.10777.x Multi-object spectroscopy field configuration by simulated annealing
 

Summary:  our batch version of CONFIGURE using the 2dF-AAOmega instrument profile. All 392 science fibres... ' FCA was relatively unsuitable for the needs of 2dF after the AAOmega spectrograph upgrade (Saunders et... and strategies within the context of 2dF-AAOmega (Section 2 and throughout) and (ii) describe the SA ...

  

Source: Parker, Quentin A. - Department of Physics, Macquarie University

 

Collection: Physics

 
6 Galaxy Dynamics: from the Early Universe to the Present ASP Conference Series, Vol. 3 \Theta 10 8
 

Summary:  column density is converted into an optical surface brightness by assuming a stellar mass­to­light ra... by adopting a stellar mass­to­light ratio appropriate for a 2 Gyr old population. The observed CO fluxes... are converted to a molecular gas by adopting a standard CO­to­H 2 conversion factor, and the evolved ...

  

Source: Hibbard, John - National Radio Astronomy Observatory

 

Collection: Physics

 
7 Mass modeling of late-type spiral galaxies from stellar kinematics and
 

Summary:  , in prac- tice, the same mass-to-light ratio for all the Gaussians in which the profile is decomposed: (M... unknown being the mass-to-light ratio, that we assume to be radially constant in each component, and from... of the circular velocity, from the kinematics and from the mass modeling, we can gain insight into the ...

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
8 The StarburstAGN Connection ASP Conference Series, Vol. 408, c 2009
 

Summary:  , aims to probe the evolution of radio galaxies out to the edge of the Universe. Using AAOmega... for photometric fits. 2. Spectroscopic Data ATLAS sources were observed using the AAOmega spectrograph (Sharp et... evolution of radio galaxies. #12;382 Mao et al. Table 2. Success rates for the Dec 2007 AAOmega observations

  

Source: Norris, Ray - Australia Telescope National Facility, CSIRO

 

Collection: Physics

 
9 Galaxy And Mass Assembly (GAMA) I. Baldry, S. Bamford, J. Bland-Hawthorn, M. Brown, M. Drinkwater, S. Driver (European PI),
 

Summary:  group mass-to-light ratio as a function of group luminosity: predictions from one set of GAMA lightcone... test than global halo properties alone. If the observed dynamical mass-to-light ratio is not seen... measurements of stellar, dust and gas mass-to-light ratios to Mr = -9 in both high and low density environments

  

Source: Liske, Jochen - European Southern Observatory

 

Collection: Physics

 
10 Galaxy Dynamics: from the Early Universe to the Present ASP Conference Series, Vol. in press, 1999
 

Summary:  be fitted well by a constant mass­to­light ratio (M/L) model but 7/10 require additional mass... . (1998, triangles). The dotted line shows the constant mass­to­light ra­ tio model; the other four lines... . Radius is given in units of the effective radius. Right panel: Corresponding cumulative mass­to­light

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
11 Radiative transfer modelling of galaxies
 

Summary:  can be fitted in a separate step by a population synthesis model or non-parametric model #12;Profiles... brightnesses SEDs for different grain sizes #12;Predicted and observed radial profile of PAH emission NGC891... #12;Predicted and observed vertical profiles of PAH emission NGC891 Popescu et al. (2011) #12;NGC891

  

Source: Smecker-Hane, Tammy A. - Department of Physics, University of California, Irvine

 

Collection: Physics

 
12 Astr 620 Fall 2009 Galaxies Sylvain Veilleux
 

Summary:  on the results. (c) Derive the profile of the mass-to-light ratio, (r) = M(r)/L(r), and plot it as a function... # 3 Problem 1. (a) Using Jeans equation, find the integrated mass profile M(r) of a spherical galaxy... brightness and R0 is a characteristc radius. (Do you recognize this type of profile?) Assume ...

  

Source: Veilleux, Sylvain - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
13 THE MASS DISCREPANCYACCELERATION RELATION: DISK MASS AND THE DARK MATTER DISTRIBUTION
 

Summary:  mass-to-light ratio that minimizes the scatter in this mass discrepancy­acceleration relation. The same... mass-to-light ratios also minimize the scatter in the baryonic Tully- Fisher relation... of the disk component is comparable to Vflat), albeit at the cost of absurdly high (>10 M LÀ1 ) mass-to-light

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
14 Dark Matter in Elliptical Galaxies? Dark matter in elliptical galaxies includes both central black holes and extended dark halos. On
 

Summary:  has a constant mass-to-light ratio, and calculate the anisotropy profile $(r) needed to satisfy (13... to the observed velocity dispersion profile, yielding a B-band mass-to-light ratio M/L 9 independent of radius... the inclination (70deg±5deg), intrinsic flattening (0.68±0.03) and I-band ...

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
15 Summary and Outlook THESIS ABSTRACT --The structure and kinematics of spiral galaxy disks are
 

Summary:  and the galaxy dynamical mass-to-light ratio. Apparently, the three dimensional disk shape is intimately tied... , central surface brightness and the dynamical mass-to-light ratio. The findings are in general accordance... , surface brightness and dynamical mass-to-light ratio and strive to make stellar kinematical observations

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
16 Mass and masstolight ratio of galaxy groups from weak Henk Hoekstra 1 , Marijn Franx 2 , & Konrad Kuijken 1
 

Summary:  Mass and mass­to­light ratio of galaxy groups from weak lensing Henk Hoekstra 1 , Marijn Franx 2... redshifts. Under the assumption that mass traces light, we find an average mass­to­light ra­ tio... with the dynamical estimate of hoe 2 i 1=2 = 251 \Sigma 21 km/s, based on the group velocity dispersions. 3.1. Mass­to­light

  

Source: Hoekstra, Henk - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
17 Dark matter in early-type disk ABSTRACT --We present mass models for a sample of 17 early-type disk galaxies,
 

Summary:  to the gravitational field. We study the constraints on the mass-to-light ratios of the stellar components and show... , provided that the stellar disks have low mass-to-light ratios ( 1 ­ 3 in the R-band). Max- imum disks... properties of the galaxies, but show that without independent, more accurate mea- surements of the disk ...

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
18 Astron. Nachr. / AN 331, No. 9-10 (2010) / P54 CoRoT observations of variable stars in the young open cluster Dolidze
 

Summary:  with AAOMEGA@3.9 AAT spectra (available for about half of the targets) to determine the variability class... . 3 Normalized AAOmega spectra and spectral classification for a subsample of 4 stars showing... of the frequency spectrum and the spectral type (i.e. position in the Hertzsprung-Russel-HR diagram). 3 AAOmega

  

Source: Monteiro, Mário João - Centre for Astrophysics, University of Porto

 

Collection: Physics

 
19 Summary and suggestions for future ABSTRACT --In this thesis, an observational study has been presented of the relation
 

Summary:  to the constraints on the mass-to-light ratios of the stellar bulges and disks, because of the degeneracies... haloes. The derived mass-to-light ratios for the `maximal bulges' are on average consistent... with the expected values from stellar population synthesis models. We found that the constraints on the disk mass-to-light

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
20 Dark Matter in Elliptical Galaxies? By analogy with disk galaxies, one might expect that the velocity dispersion profile of an elliptical
 

Summary:  velocity distributions should be isotropic. Another option is to assume that the galaxy has a constant mass-to-light... to the data, yielding a blue mass-to-light ratio M L ³ 11 independent of radius. But this fit assumes... , assuming a constant mass-to-light ratio; terms representing unseem mass may be included. 4. Solve the ...

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics


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21 A&A 506, 281286 (2009) DOI: 10.1051/0004-6361/200911902
 

Summary:  , and on an RV range corresponding to the sum of the width of both CCF line profiles. This prerequisite... performed in January 2008 with the AAOmega multi-object fa- cility at the Anglo-Australian Observatory... . By comparing the low-resolution (R = 1300) AAOmega spectrum of the target with a grid of stellar templates

  

Source: Bordé, Pascal J. - Institut d'Astrophysique Spatiale, Université Paris Sud

 

Collection: Physics

 
22 Modified Gravity Approaches to the Dark Sector 28 June 2010 Empirical Tests of MOND in Galaxies
 

Summary:  Mass-to-Light Ratios MOND predictions "Disk Galaxies with low surface brightness provide particularly... Rotation Curve Fits · Stellar Population Mass-to-Light Ratios MOND predictions ! #12;Rotation curves... Mass-to-Light Ratios MOND predictions #12;· The Tully-Fisher Relation · Slope = 4 · Normalization

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
23 The Astrophysical Journal, 533:L99L102, 2000 April 20 2000. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  , is the fraction of disk baryons in the formf of stars, and is the mass-to-light ratio of the stars. Each of... and get at the question of the underlying mass, we assume a stellar mass-to-light ratio for each passband... mass-to-light ratio ( ), so (a) is directly analogous to the usualM = U L luminosity­line width

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
24 Conclusions and summary IN this Thesis we have studied the properties of the kinematics and stellar populations of a
 

Summary:  ) of the model photo- metric profiles of bulge and disc, converted to mass profiles leaving the mass-to-light... profiles of circular velocity (from the kinematics and from the mass model) represents its mass-to-light... differ from their discs in terms of their dynamical status and ...

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
25 APJ ACCEPTED [30 MARCH 2004] Preprint typeset using LATEX style emulateapj v. 2/19/04
 

Summary:  measured from the Hubble Space Telescope. We have used these measurements to derive masses and mass-to-light... extend to an order of magnitude higher mass than in the Local Group. The mean mass-to-light ratio... dispersion, central concentration, mass, or mass-to-light ratio (see next section). 5.2. Cluster Masses

  

Source: Martini, Paul - Department of Astronomy, Ohio State University

 

Collection: Physics

 
26 arXiv:astro-ph/0311052v13Nov2003 ASP Conference Series, Vol. **VOLUME***, **YEAR OF PUBLICATION**
 

Summary:  profile scaled by a stellar mass-to-light ratio, the other component represents the dark matter halo... the fraction of dark matter within the Einstein radius, the mass-to-light ratio of the stellar component... mass-to-light ratio cannot repro- duce the observations, although there are typically large

  

Source: Smith, Graham P. - School of Physics and Astronomy, University of Birmingham

 

Collection: Physics

 
27 Astrophys Space Sci (2010) 328: 119122 DOI 10.1007/s10509-009-0189-1
 

Summary:  of pulsation. 3 AAOmega spectra in the Dolidze 25 region Low-resolution spectra (R 1300) for a subsample (12... : 119­122 121 Fig. 2 Normalized AAOmega spectra and spectral classification for a subsample of 4 stars... showing pulsation the AAOmega multi-object facility at the Anglo-Australian Observatory, during two

  

Source: Monteiro, Mário João - Centre for Astrophysics, University of Porto

 

Collection: Physics

 
28 Dark Matter in Elliptical Galaxies: 3Integral Modeling R.P. Saglia, M. Bernardi
 

Summary:  axis kinematics out to R ß 1:3R e is obtained with a constant mass­to­light ratio (M/LR =5.2, H 0 = 50... (x; y) of a (flattened and rotating) elliptical galaxy, a constant mass­to­light ratio is assumed... the E4.5 galaxy NGC 4697, showing that 3­integral modeling with constant mass­to­light ratio gives fits

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
29 Anglo-Australian Time Assignment Committee AngloAustralian Observatory, PO Box 296 Epping NSW 1710
 

Summary:  on the simulated GAMA data also include limitations in detecting real groups. (right) The 2PIGG group mass-to-light... , baryonic and dynamical mass-to-light ratios versus mass, structure, environment and red- shift 17. 8... AAOmega MOS proposals will be performed in service as standard. Otherwise, justify service mode

  

Source: Liske, Jochen - European Southern Observatory

 

Collection: Physics

 
30 A&A 408, 116 (2003) DOI: 10.1051/0004-6361:20030844
 

Summary:  the radial mass-to-light ratio, which is an indication of the extent to which the light traces the mass... . The final total mass-to-light ratio is shown in Fig. 11, where the errors are computed quadratically from... ) Radius (h -1 kpc) Radius (r 200 ) · · 5 0 Fig.11. The integrated radial mass-to-light ratio. Errors

  

Source: Boehringer, Hans - Max-Planck-Institut für extraterrestrische Physik

 

Collection: Physics

 
31 Dispersion & Mass Profiles Manipulation of the collisionless Boltzmann equation (CBE) yields a set of relationships, the
 

Summary:  is to assume that the galaxy has a constant mass­to­ light ratio, and calculate the anisotropy profile fi... of the mass­to­light ratio is approximately constant within the effective radius R e , and then rises smoothly... Chapter 13 Dispersion & Mass Profiles Manipulation of the ...

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
32 Dark Matter in Disk Galaxies Rotation curves of disk galaxies rise steeply in their inner regions and then remain roughly flat out to
 

Summary:  mass has a disk mass-to-light ratio of M/LB = 3.6, consistent with a disk-type stellar population... ;14.2. HALO SHAPES 93 14.1.2 DDO 154 & other dwarf disk galaxies Uncertainties in mass-to-light ratios make... for a mass-to-light ratio of M/LB 1. Neither component comes close to explaining the inclination

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
33 Dark Matter in Disk Galaxies Rotation curves of disk galaxies rise steeply in their inner regions and then remain roughly flat out to
 

Summary:  galactic rotation curves is severely underconstrained. The model with the maximum disk mass has a disk mass-to-light... .1.2 DDO 154 & other dwarf disk galaxies Uncertainties in mass-to-light ratios make luminous disk galaxies... ¢108 M¬. This completely overshadows the mass in stars, estimated at M£ ³5¢107 M¬ for a ...

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
34 Conclusions and future work Measuring the CDM substructure mass function represents a key test of the CDM paradigm
 

Summary:  the physical properties of dark matter. Because of the predicted large total mass-to-light ratio of the missing... of the SLACS lens SDSS J0946+1006. This has led to the discovery of a very high mass-to-light ratio mass... -type lens galaxy of SLACS SDSS J0946+1006 hosts a large mass-to-light ratio ( (M/L)V, 120 M /LV, , 3

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
35 MASS MODELING OF ABELL 1689 ADVANCED CAMERA FOR SURVEYS OBSERVATIONS WITH A PERTURBED NAVARRO-FRENK-WHITE MODEL
 

Summary:  ln r ¼ À1:34 at r ¼ 150 kpc. The overall B-band mass-to-light ratio within the Einstein radius is 215... . The galaxy component is de- rived from the visible galaxy distribution and augmented by a mass-to-light ratio... component is transformed to lensing deflections, ~, and is simply scaled in the modeling by a single ...

  

Source: Johns Hopkins University, Department of Physics and Astonomy, Advanced Camera for Surveys Project

 

Collection: Physics

 
36 The StarburstAGN Connection ASP Conference Series, Vol. 408, c 2009
 

Summary:  , with scheduled observations using both the Australia Telescope Compact Array (ATCA) and AAOmega on the Anglo... from the literature and utilizing AAOmega on the AAT (for more detailed information see Mao et al. 2009

  

Source: Norris, Ray - Australia Telescope National Facility, CSIRO

 

Collection: Physics

 
37 Mass Modeling of Abell 1689 ACS Observations with a Perturbed K.C. Zekser1
 

Summary:  ln r = -1.34 at r = 150 kpc. The overall B-band mass-to-light within the Einstein radius is 215+13 -2... by a mass-to-light ratio. The model is then optimized using the surface brightness constraint along... scaled in the modeling by a single mass-to-light parameter. In addition, the large scale halo is defined

  

Source: Johns Hopkins University, Department of Physics and Astonomy, Advanced Camera for Surveys Project

 

Collection: Physics

 
38 arXiv:astro-ph/0412035v12Dec2004 Accepted for publication in The Astrophysical Journal
 

Summary:  )/2 , which corresponds to a power law density profile: DM r-DM . Allow- ing the stellar mass-to-light... the best available estimate of the stellar mass-to-light ratio. Our target galaxies were originally... that the color and stel- lar mass-to-light ratio (M/L) of a galaxy are correlated. In order to ...

  

Source: Bolatto, Alberto - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
39 Disks of Galaxies : Kinematics, Dynamics and Perturbations ASP Conference Series, Vol. iii, 2002
 

Summary:  , surface densities and mass­to­light ratios in two blue, high surface­brightness, yet small disks. If our... + gas 1h 1.7­2h 2.6h 3.5h Age (Gyr) 10 10 10 9 10 8 10 7 Figure 3. K­band mass­to­light ratio versus B... . Consequently the mass­ to­light ratio of the disk increases with radius for R/hR ...

  

Source: Bershady, Matthew A. - Department of Astronomy, University of Wisconsin at Madison

 

Collection: Physics

 
40 Quantifying dwarf satellites through gravitational imaging in SDSS
 

Summary:  contaminating G4 and the model uncertainty for the light profile. The total mass-to-light ratio of G4, inside... an upper limit to the true mass-to-light ratio. Plausible de Vaucouleur profiles are typically 0.8 mag... to detect galactic satellites independently from their mass-to-light ...

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology


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41 Galaxy Evolution: Emerging Insights and Future Challenges ASP Conference Series, Vol. XXX, 2009
 

Summary:  and approximately equal dynamical mass-to-light ratios for a given mass. Many authors have argued that at least some... to have higher mass-to-light ratios than spirals on average. They should therefore therefore have fainter... stellar component with a constant mass-to-light ratio and an NFW dark halo (Navarro et al. 1997). We

  

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

 

Collection: Physics

 
42 John C. Baez and Laurel Langford Department of Mathematics, University of California
 

Summary:  : (i A\Omega A)(A\Omega e A ) ) 1 A called the triangulator of A. We say that a 2­morphism ff... A )) \Delta ((A\Omega (i A i \Lambda RA;A ))(R \Lambda A;A\Omega A)(A\Omega e A )) = T \Gamma1 A \Delta ((i A... \Omega A)(A\Omega (i RA;A e A ))) \Delta ((i A\Omega A)(A\Omega (R A;A W y A ...

  

Source: Baez, John - Department of Mathematics, University of California at Riverside

 

Collection: Mathematics

 
43 Measuring Galaxy Disk Mass with the SparsePak Integral Field Unit on WIYN
 

Summary:  ), indicated by the short dashed line in the middle panel. Given the K # luminosity profile, the mass­to­light... : maximum­disk decomposition which implies a stellar mass­to­light ratio of 0.80 in the K # band. Right... panel: The points indicate the inferred mass surface density for an isothermal vertical density ...

  

Source: Bershady, Matthew A. - Department of Astronomy, University of Wisconsin at Madison

 

Collection: Physics

 
44 ACCEPTED FOR PUBLICATION IN THE APJ Preprint typeset using L A T E X style emulateapj
 

Summary:  lumi­ nosity profile, assuming a constant mass­to­light ratio. For the light distribution we use... of the light distribution. We find a value of (90 \Sigma 13)h 50 M fi / L V fi for the mass­to­light ratio... by the shaded region). The arrow indicates a radius of 1 h -1 50 Mpc. 7.3. Mass­to­light ...

  

Source: Hoekstra, Henk - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
45 The Astrophysical Journal, 598:L87--L90, 2003 December The American Astronomical Society. reserved. Printed
 

Summary:  . is seven galaxies observed in cluster fields that turned out members. The mass­to­light ratios Tully... ), a X­ray--emitting and overall mass­ to­light is much larger than individual galaxies, indicating... of substructure clusters Sprin­ gel (2001), matter halo galaxy into cluster is truncated interactions that ...

  

Source: Ziegler, Bodo Leonhardt - Institut für Astronomie, Universität Wien

 

Collection: Physics

 
46 Mon. Not. R. Astron. Soc. 415, 545562 (2011) doi:10.1111/j.1365-2966.2011.18725.x Dynamical masses of early-type galaxies: a comparison to lensing results
 

Summary:  with dark matter haloes are in good agreement with lensing results. We derive mass-to-light ratios... radial increase in the mass-to-light ratio ­ if needed to explain the observed velocities of the stars... -state dynamical system. If the symmetry assumptions are strongly violated, dynamical mass-to-light ratios can

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
47 ASTRONOMY & ASTROPHYSICS MAY II 2000, PAGE 53 SUPPLEMENT SERIES
 

Summary:  model fits to the kinematic data and the derived radial profiles of orbital anisotropy and B­band mass­to­light... the mass­to­ light ratio, we check the calibration of the adopted sur­ face brightness profiles as follows... and dark matter to produce a flat rotation curve, like in ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
48 ASTRONOMY & ASTROPHYSICS MAY II 2000, PAGE 53 SUPPLEMENT SERIES
 

Summary:  model fits to the kinematic data and the derived radial profiles of orbital anisotropy and B-band mass-to-light... the mass-to- light ratio, we check the calibration of the adopted sur- face brightness profiles as follows... matter to produce a flat rotation curve, like in spiral ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
49 Mon. Not. R. Astron. Soc. 410, 12231236 (2011) doi:10.1111/j.1365-2966.2010.17610.x The central black hole mass of the high-but low-bulge-luminosity
 

Summary:  .45 ± 0.20) × 109 M with a bulge mass-to-light ratio of 7.08 ± 0.39 in the R band. With this mass... different mass-to-light ratios) and so that we could esti- mate its bulge luminosity in order to see where... the galaxy into a bulge and a disc, with potentially different stellar mass-to- light ratios. ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
50 Astronomical Society of Australia Annual Scientific Meeting
 

Summary:  with 2dF and AAOmega, and also use the fibre systems for spectroscopy of stars in the Magellanic Clouds... Research Fellow and the Instrument Scientist for 2dF/AAOmega and Spiral at the Australian Astronomical... and chemical abundance ratios of their stellar populations. Max is also leading the upgrades of the 2dF/AAOmega

  

Source: Adelaide, University of - School of Chemistry and Physics, Astrophysics Research Group

 

Collection: Physics

 
51 Astronomy 422 Lecture 11: Normal Galaxies IV
 

Summary:  surface brightness core · Extended, diffuse envelopes · Large amounts of globular clusters · High mass-to-light... , plenty of gas · Low mass-to-light ratios · ~109 M · < 3 kpc diameters #12;A few properties Basically... ·Large range in properties: ­ luminosity ­ surface brightness profile ­ rotation rate #12;Huge ...

  

Source: Taylor, Greg - Department of Physics and Astronomy, University of New Mexico

 

Collection: Physics

 
52 A&A 451, 395408 (2006) DOI: 10.1051/0004-6361:20041787
 

Summary:  mass-to-light ratio with redshift. Finally we determine the noise level in the shear measurements... for the mass aperture measurement, cluster mass-to-light ratio in I, and the cluster mass-to-light ratio in B... if the center of mass of the clusters is spatially coincident with the BCG. 2.3. Mass-to-light ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
53 The Astrophysical Journal, 570:L89L92, 2002 May 10 2002. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  MASS-TO-LIGHT RATIO IN THE CLUSTER CORE N. D'Amico,1,2 A. Possenti,1 L. Fici,3 R. N. Manchester,4 A. G... by the central mass density derived from optical observation, providing dynamical evidence for a central mass-to-light... observations, labeled according to the adopted mass-to-light ratio. The filled pentagons represent ...

  

Source: Sarkissian, John M. - Parkes Observatory, Australia Telescope National Facility

 

Collection: Physics

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

Summary:  of 5.5 · 1011 M sin-2i and a mass-to-light ratio of 17 M/LB sin-2i. NGC 3108 is thus embedded... curves. One was found by analysing the line profiles along a fixed straight line aligned with the inner... disk. The second rotation curve resulted from the analysis of the line profiles along straight lines

  

Source: Józsa, Gyula I. G. - Argelander-Institut für Astronomie, Universität Bonn

 

Collection: Physics

 
55 Why we need survey-styleWhy we need survey-style bulge-disk decompositionbulge-disk decomposition
 

Summary:  the bulge-disk decomposition of ~100k galaxies. Recently, GAMA has been awarded 66 nights on AAOmega

  

Source: Liske, Jochen - European Southern Observatory

 

Collection: Physics

 
56 Mass profiles and anisotropies of early-type galaxies John Magorrian1,2w
 

Summary:  , for a spherical galaxy, the range of mass-to-light ratio profiles consistent with an observed velocity dispersion... seek the range of smooth mass-to-light ratio profiles Y(r) consistent with these observations and some... by varying the local mass-to-light ratio to fit the observed ...

  

Source: Ballantyne, David R. - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
57 DOES LOW SURFACE BRIGHTNESS MEAN LOW DENSITY? W. J. G. DE BLOK
 

Summary:  galaxy UGC 128 has a higher mass-to-light ratio, and yet has lower mass densities than the high surface... implies either a truly high stellar mass-to-light ratio or the existence of an additional dark component... 1978) predict a stellar mass-to-light ratio * B 3 2.6, while for B V 1 0.5 (typical for LSB galaxies

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
58 THE ASTRONOMICAL JOURNAL VOLUME 000, NUMBER 0 FEBRUARY 1998 THE MASS DISTRIBUTION IN THE ELLIPTICAL GALAXY NGC 3377
 

Summary:  in Figure 8, and the mass­to­light ratio profiles are shown in Figure 9. Figure 10 shows residual mass­to­light... and seeing convolution. Isotropic models imply that the mass­to­light ratio rises by a factor of ¸ 4 at r ! 2... 00 to M=L V ? ¸ 10. If the mass­to­light ratio of ...

  

Source: Kormendy, John - Department of Astronomy, University of Texas at Austin

 

Collection: Physics

 
59 Mon. Not. R. Astron. Soc. 000, 000000 (0000) Printed 30 March 2011 (MN LaTEX style file v2.2) On the mass-to-light ratios of fossil groups: Are they
 

Summary:  .2) On the mass-to-light ratios of fossil groups: Are they simply dark clusters? Robert N. Proctor1 , Claudia... also confirm the high dynamical mass- to-light ratios reported in many previous studies, finding values... BCG luminosities and low richnesses, while the low richnesses also explain the high ...

  

Source: Dupke, Renato A. - Department of Astronomy, University of Michigan

 

Collection: Physics

 
60 Mon. Not. R. Astron. Soc. 379, 909914 (2007) doi:10.1111/j.1365-2966.2007.11949.x The supermassive black hole in NGC 4486a detected with SINFONI
 

Summary:  kinematically and photometrically of two components with possibly different mass-to-light ratios , we deproject... is the luminosity density obtained from the deprojection and the ACS z band mass-to-light ratio is assumed... ). As it takes a large amount of computing time to calculate all models with different mass-to-light ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics


Page:   1  2  3  4  5 
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61 THE ASTROPHYSICAL JOURNAL, 000:L00L00, 1997 fl 1997. The American Astronomical Society. All Rights Reserved. Printed in U.S.A.
 

Summary:  and bulge luminosity. Therefore the King core mass­to­light ratio, M=L V ' 20, is unusually high compared... mass­to­light ratio is normal for an old stellar population. With respect to these, BH candidates stand... out as having large oe. For a resolved core, the King core mass­to­light ratio (Richstone & Tremaine

  

Source: Kormendy, John - Department of Astronomy, University of Texas at Austin

 

Collection: Physics

 
62 Mass Estimates of Starbursting Galaxies: Line Widths versus NearIR Luminosities
 

Summary:  ­IR flux (Leitherer & Heckman 1995), making it difficult to assign a mass­to­light ratio to the galaxy... [10 9 M solar ] M s [10 9 M solar ] M NIR = 4 M s M NIR = 10 M s Figure 1. Left panel: The K band mass­to­light... profiles to estimate dynamical galaxy masses, M oe , of the CNELGs. The small line­widths (¸50 km

  

Source: Bershady, Matthew A. - Department of Astronomy, University of Wisconsin at Madison; Wisconsin at Madison, University of - Department of Astronomy,

 

Collection: Physics

 
63 A Dearth of Dark Matter in Ordinary Elliptical Galaxies
 

Summary:  ­14) and the PNe, inferring a benchmark quantity B5, the B-band mass-to-light ratio in solar units at 5 Reff (Table... -band mass-to-light ratio at 5 effective radii (in solar units) deter- mined from anisotropic Jeans models... . The mass-to-light ratios are systematically sensitive to the assumed distance--e.g., if D = 13 Mpc ...

  

Source: Douglas, Nigel - Kapteyn Astronomical Institute, Rijksuniversiteit Groningen

 

Collection: Physics

 
64 Mon. Not. R. Astron. Soc. 385, 17291748 (2008) doi:10.1111/j.1365-2966.2008.12905.x Dark matter content and internal dynamics of NGC 4697: NMAGIC particle
 

Summary:  , introduce an efficient scheme to estimate the mass-to-light ratio, and incorporate a maximum... 1Re. The data were con- sistent with a constant mass-to-light-ratio and none of these models showed... , introduce an efficient scheme to estimate the mass- to-light ratio, and show how discrete velocity

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
65 Mon. Not. R. Astron. Soc. 000, 126 (2009) Printed 22 July 2009 (MN LATEX style file v2.2) Kinematic constraints on the stellar and dark matter content of
 

Summary:  - infrared photometry under the assumptions of axisymmetry and a constant KS-band stellar mass-to-light ratio... typically extend to 2­3 Re or, equivalently, 0.5­1 R25. We find a median stellar mass-to- light ratio... this large sample of dynamically determined stellar mass-to-light ratios and the ...

  

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

 

Collection: Physics

 
66 Mon. Not. R. Astron. Soc. 360, 13551372 (2005) doi:10.1111/j.1365-2966.2005.09139.x Regularized orbit models unveiling the stellar structure and dark matter
 

Summary:  range. In both cases, the derived stellar mass-to-light ratio agrees well with independently obtained... mass-to-light ratios from stellar population analysis. The achieved accuracy is 0.5. Kinematically... is sufficiently char- acterized by a constant stellar mass-to-light ratio (see also Sec- tion 9 and Fig. 22

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik; Thomas, Daniel - Institute of Cosmology and Gravitation, University of Portsmouth

 

Collection: Physics

 
67 Dynamical Mass Determination for Elliptical Galaxies Ortwin Gerhard, Gunther Jeske
 

Summary:  H 0 =50km=s=Mpc) of 1:6 \Gamma 2:6 \Theta 10 11 h \Gamma1 50 M fi , and to an integrated B­band mass--to--light... of total mass, but cannot fix the mass--to--light ratio of the stellar component separately. To do this, we... that the central mass--to--light ratio in NGC 6703 comes out low (3:3) even in a maximum stellar mass ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
68 Galaxies, part 1 Sterrenstelsels & Kosmos
 

Summary:  ) and a reasonable guess at the mass-to-light ratio in some band, Milgrom found a010-8 cm/s2 --- very small, but just... fundamental plane relations. In ° 4, we relate the l mass-to-light ratios to the stellar population . In ° 5... models from which circular velocity dial proÐles of mass-to-light ratio, and anisotropy r these ...

  

Source: Weijgaert, Rien van de - Kapteyn Astronomical Institute, Rijksuniversiteit Groningen

 

Collection: Physics

 
69 ACCEPTED FOR PUBLICATION IN THE APJ Preprint typeset using L A T E X style emulateapj
 

Summary:  mass distribution, the corresponding velocity dispersion is 1311 +83 -89 km/s. For the mass­to­light... . The errors in the mass and mass­to­light ratio include the contribution from the random intrinsic... distribution. However, the estimates for the mass and mass­to­light ratio of MS 1054­03 agree well with other

  

Source: Hoekstra, Henk - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
70 ASTRO 620 GALAXIES Prof. Sylvain Veilleux
 

Summary:  VI. Dark Matter (2 lectures) · Mass determinations and mass-to-light ratios on various scales... profiles; Galactic nuclei: dormant black holes, AGN, starburst galaxies; Galaxy for- mation and evolution... profiles V. Galactic Nuclei (4 lectures) · Evidence for a supermassive black hole in our Galaxy · Dormant

  

Source: Veilleux, Sylvain - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
71 Mon. Not. R. Astron. Soc. 403, 646672 (2010) doi:10.1111/j.1365-2966.2009.16167.x Do black hole masses scale with classical bulge luminosities only? The case
 

Summary:  mass-to-light ratios , we need to separate these components for modelling purposes. But we also need... the surface-brightness profile. Bulges were generally regarded as scaled-down versions of elliptical galaxies... - dominated kinematics, exponential surface-brightness profiles or young stellar populations. As the formation

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
72 The Astrophysical Journal, 522:L93L96, 1999 September 10 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  surface brightness by assuming a stellar mass-to-light ratio appropriate for an evolved population... B) by dividing by the stellar mass- to-light ratio (M* /LB) expected for a 2 Gyr old population. We adopt... the stellar mass-to-light ratios given by de Jong (1995, Table 1 of chap. 4), which were derived ...

  

Source: Hibbard, John - National Radio Astronomy Observatory

 

Collection: Physics

 
73 RIJKSUNIVERSITEIT GRONINGEN The distribution of Gas, Stars and Dark
 

Summary:  . . . . . . . . . . . . . . . . . 239 6.4.2 constraints on the disk mass-to-light ratio . . . . . . . . . . . . . . . 241 6.4.3 the mass-to-light... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.3.3 global profiles and total HI masses . . . . . . . . . . . . . . . . . . 24 2.3.4 integrated... . . . . . . . . . . ...

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
74 A&A 505, 577587 (2009) DOI: 10.1051/0004-6361/200811136
 

Summary:  sample. Fig. 6. Stellar I-band mass-to-light ratio () vs. (V - I) color for two different population... to construct a BTF, we discuss our choices for the stellar mass-to-light ratios (), describe the corrections... and baryonic masses. 5.1. The choice of the stellar mass-to-light ratio One of the largest contributors

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
75 The University of Western Ontario DEPARTMENT OF PHYSICS AND ASTRONOMY
 

Summary:  Warren Physics & Astronomy Department McMaster University "The High HI Mass-to-Light Ratio Dwarf Galaxies... mass-to-light ratios (MHI/LB) and luminosity. Galaxies which maintain large quantities of unprocessed... irregular galaxy, which to our knowledge has the highest HI mass-to-light ratio for a galaxy to be confirmed

  

Source: Lennard, William N. - Department of Physics and Astronomy, University of Western Ontario

 

Collection: Materials Science ; Physics

 
76 hal-00125500,version2-18Apr2007 Draft version April 18, 2007
 

Summary:  parameters; i) the average stellar mass-to-light ratio M/LV = 4.48±0.46 hM/L (at z = 0.2), in agreement... with that expected for an old stellar population; ii) the average virial mass-to-light ratio Mvir/LV = 246+101 -87 h... luminosities and can be con- sidered as fair proxies for the lens stellar mass up to an average stellar ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
77 astroph/9710129 Mon. Not. R. Astron. Soc. 000, 000--000 (0000) Printed October 13, 1997 (MN L A T E X style file v1.4)
 

Summary:  profile (Section 2), so rJ is known. This leaves three free parameters, the mass MJ or mass--to--light... , the total luminous mass inside 78 00 is 9 \Theta 10 10 M fi and the integrated B­band mass--to--light ratio... constant mass--to--light ratio for r ø rJ , and (ii) they form a sequence of varying true ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
78 A Dynamical Model for the Globular Cluster G1 Holger Baumgardt1
 

Summary:  dispersion, rotation, and ellipticity. We obtain a mass-to-light ratio of M/L = 4.0 ± 0.4 and a total cluster... of mass-to-light ratios observed for galactic globular clusters (?). Column 6 gives the probability PV... ) and total mass-to-light ratio M/L, and the initial half-mass radius rh(0). Our conclusions are therefore

  

Source: Baumgardt, Holger - Argelander-Institut für Astronomie, Universität Bonn

 

Collection: Physics

 
79 A&A 464, 451464 (2007) DOI: 10.1051/0004-6361:20054708
 

Summary:  -SDSS galaxy cluster survey VII. On the cluster mass-to-light ratio and the halo occupation distribution P... the mass-to-light ratio in galaxy clusters and its relation to the cluster mass. Methods. We study... Lop and Ngal, which, in turn, links the cluster mass-to-light ratio to the Halo Occupation

  

Source: Boehringer, Hans - Max-Planck-Institut für extraterrestrische Physik

 

Collection: Physics

 
80 Top: Low-order basis functions. Bottom: effects on Gaussian (dotted) profiles. van der Marel & Franx (1993). J. Kormendy
 

Summary:  (12­14) and the PNs, infer- ring a benchmark quantity B5, the B-band mass- to-light ratio in solar... mass-to- light­ratio galaxy (dot- ted lines). Table 1. Properties of three galaxies observed... of the B-band mass-to-light ratio at 5 Reff (in solar units) determined from anisotropic ...

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics


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81 Observations of Ultra-Faint Galaxies Yale University
 

Summary:  for upcoming -ray observatories. · Less luminous galaxies (300 < L < 100,000). · Highest mass-to-light ratios... -Faint Galaxies Mass/density profiles depend on assumption that measured velocities probe gravitational potential

  

Source: Maryland at College Park, University of - Institute for Phyical Science and Technology, Weather and Chaos Project

 

Collection: Physics ; Geosciences

 
82 The Astrophysical Journal, 495:L13L17, 1998 March 1 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  ( ), have masses comparable to dwarf galaxies (i.e., ). Their low mass-to-light ratios are10 M 21 M/M 10B... estimated from the rest-frame ( )B V colors and mass-to-light ratios to involve typically 10% of the galaxy... spheroidals. In contrast, although the four FBGs have similar colors and mass-to-light ratios to CNELGs

  

Source: Bershady, Matthew A. - Department of Astronomy, University of Wisconsin at Madison

 

Collection: Physics

 
83 arXiv:1005.3649v2[astro-ph.CO]21May2010 Mon. Not. R. Astron. Soc. 000, 114 (200X) Printed 24 May 2010 (MN LATEX style file v2.2)
 

Summary:  is at a redshift of 0.22. The spectroscopic observations, taken using the AAOmega spectrograph on the AAT, show... radio sources with AAOmega (Sharp et al. 2006) on the Anglo-Australian Telescope (AAT). We are currently... . redshifts from the literature. We have obtained 395 new spectroscopic redshifts using AAOmega giving a ...

  

Source: Norris, Ray - Australia Telescope National Facility, CSIRO

 

Collection: Physics

 
84 Accepted for publication in The Astrophysical Journal Preprint typeset using L A T E X style emulateapj v. 11/12/01
 

Summary:  -band stellar mass-to- light ratio (M #3; =LK ) of 0:09 +0:15 0:08 M#12;=L#12;K (including systematic... mass-to-light ratio and assuming an expo- nential disk. Target selection also has important e#11;ects... #12;cant. However, as we will show in x3.1, the measured Lowell colors all pre- dict stellar ...

  

Source: Bolatto, Alberto - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
85 February 16, 2010 The dark matter halo shape of edge-on disk galaxies
 

Summary:  stronger constraint on the stellar mass-to-light ratio than rotation curve decomposition. Fitting... of the halo core radius, halo asymptotic velocity, and stellar mass-to-light ratio by rotation curve... mass-to-light ratio. The radial surface den- sity of the stars and gas was used directly to derive

  

Source: Kruit, Piet van der - Kapteyn Astronomical Institute, Rijksuniversiteit Groningen

 

Collection: Physics

 
86 SUBMITTED TO The Astrophysical Journal (Letters). Preprint typeset using L A T E X style emulateapj v. 11/12/01
 

Summary:  are the BH mass and the stellar mass­to­light ratio (M=L). The best­fit BH mass is 2:0(+1:4;-0:8) #2;10 4 M... and clusters in order to ex­ plore this issue. The model that we use for G1 assumes a constant stellar mass­to­light... ­ propriate mass­to­light variation and find that the required black hole mass increases ...

  

Source: Williams, Gary A. - Department of Physics and Astronomy, University of California at Los Angeles

 

Collection: Physics

 
87 SUBMITTED TO The Astrophysical Journal (Letters). Preprint typeset using LATEX style emulateapj v. 11/12/01
 

Summary:  and the stellar mass-to-light ratio (M L). The best-fit BH mass is 2 0(+1 4 -0 8)¢104 M¬ with M LV = 2.6. Figure 3... in order to ex- plore this issue. The model that we use for G1 assumes a constant stellar mass-to-light... - propriate mass-to-light variation and find that the required black hole mass increases slightly. The ...

  

Source: Williams, Gary A. - Department of Physics and Astronomy, University of California at Los Angeles

 

Collection: Physics

 
88 Mon. Not. R. Astron. Soc. 000, 000--000 (0000) Printed 6 October 2000 (MN L A T E X style file v1.4) On the apparent coupling of neutral hydrogen and dark
 

Summary:  in the outer parts (under the as­ sumption that the mass­to­light ratio of the luminous matter is independent... , assuming a mass­to­light ratio independent of radius. We further assume that the stel­ lar disc has... gas is taken into account in the value of the mass­to­light ratio of the stellar component. Dark

  

Source: Hoekstra, Henk - Canadian Institute for Theoretical Astrophysics, University of Toronto

 

Collection: Physics

 
89 S. Phleps LMU SS09: Galaxien und Galaxienhaufen im Universum 1 Galaxien und Galaxienhaufen im Universum
 

Summary:  : Galaxien und Galaxienhaufen im Universum Masses of elliptical galaxies: The virial theorem VI · If the mass-to-light... velocities · Rotation curves become flat in the outer parts: v=vmax=const · We assume a constant mass-to-light... -Fisher relation to measure both masses of spiral galaxies and their mass-to-light ratios ...

  

Source: Boehringer, Hans - Max-Planck-Institut für extraterrestrische Physik

 

Collection: Physics

 
90 Prof. Dr. M. Carollo Galaxies in CDM Question Quantify the phenomenon of the galactic cannibalism from a giant galaxy.
 

Summary:  orbits around the giant galaxy, and have a mass- to-light ratio M = L. Give a rough estimate... of its cannibalism. Assume for the victim galaxies mass- to-light ratios of order 12hMJ/LJ, Vc 300 km

  

Source: Carollo, C. Marcella - Institut für Astronomie, Eidgenössische Technische Hochschule Zürich (ETHZ)

 

Collection: Physics

 
91 THE COMPRESSION OF DARK MATTER HALOS BY BARYONIC INFALL J. A. Sellwood
 

Summary:  distribution but in its amplitude, which depends on the stellar mass-to-light ratio ÇÃ. For a specific choice... , as given by the parameter Q ¼ ÇÃ/Çopt , which encapsulates the goodness of the mass-to-light ratio... our final adopted mass-to-light ratio ÇÃ TABLE 1 Disk, Compressed, and Primordial Halo Parameters

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
92 Astron. Astrophys. 323, 349--356 (1997) ASTRONOMY ASTROPHYSICS
 

Summary:  the mass and light density profiles respectively and hence the radial mass­to­light profile. The method... /L| # = 0.78, m/L|# = 0.69. The mass­to­light ratio radial profile slightly decreases from the value of # 8M... gas disks in four el­ liptical galaxies have been exploited to ...

  

Source: Saglia, Roberto P. - Max-Planck Institut für extraterrestrische Physik

 

Collection: Physics

 
93 Observational Constraints on the Acceleration Discrepancy Problem
 

Summary:  of total to baryonic mass. It depends on the stellar mass-to-light ratio, for which we can explore many... Before we explore the choice of stellar mass-to-light ratio, note that the basic phenomenology is already... present in the data, without any free parameters. The K'-band dynamical mass-to-light ratio correlates

  

Source: McGaugh, Stacy - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
94 The Astrophysical Journal, 598:L87L90, 2003 December 1 2003. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  is true for the seven galaxies observed in the cluster fields that turned out not to be members. The mass-to-light... of a cluster is filled by the intracluster me- dium (ICM), a hot X-ray­emitting gas, and the overall mass- to-light... into the cluster is truncated via tidal interactions so that the ...

  

Source: Ziegler, Bodo Leonhardt - Institut für Astronomie, Universität Wien

 

Collection: Physics

 
95 Vol. 38 (2007) ACTA PHYSICA POLONICA B No 12 CLUSTERING SCALE OF DARK MATTER
 

Summary:  -band surface luminosity profile (triangles). (b) Mass-to-light ratios for the M101 galaxy: solid line for total... and I (B -- triangles, V -- squares, I -- circles) for galaxy M94. (b) Mass-to-light ratio as a function... into account also molecular hydrogen [9] of which presence reduces the mass-to-light ...

  

Source: Magiera, Andrzej - Instytut Fizyki, Uniwersytet Jagiellonski

 

Collection: Physics

 
96 arXiv:astro-ph/0508261v111Aug2005 THE OPACITY OF SPIRAL GALAXY DISKS
 

Summary:  . and de Jong, R. S. (2001). Stellar Mass-to-Light Ratios and the Tully-Fisher Relation. ApJ, 550... in the Outer Disk of M31. ApJ, 554:190­201. de Jong, R. S. (2005). Stellar mass-to-light ratios and rotation... , arm or disk region, surface brightness or HI column density. 2 3. The opacity profile of spiral disks

  

Source: Kruit, Piet van der - Kapteyn Astronomical Institute, Rijksuniversiteit Groningen

 

Collection: Physics

 
97 ccsd-00004611,version2-8Jul2005 Astronomy & Astrophysics manuscript no. lensdyn.hyper31346 July 8, 2005 (DOI: will be inserted by hand later)
 

Summary:  that all stars have a constant mass-to-light ratio. We assumed the following analytic expression... stellar mass-to-light ratio. Throughout the paper, we shall discuss the con- sequences of this particular... section. The stellar mass-to-light ratio V is treated as a free parameter with a broad uniform prior 1

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
98 Introduction HERE is more between heaven and earth than meets the eye.' Although most of-
 

Summary:  than expected from the observed light distributions, implying strongly increasing mass-to- light ratios... for the mass-to-light ratios of the bulges and disks, the shape of the optical rotation curves of many galaxies... .e. by assuming a suitably high mass-to-light ratio) the contributions of the luminous ...

  

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

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
99 Mon. Not. R. Astron. Soc. 361, 3444 (2005) doi:10.1111/j.1365-2966.2005.09159.x The HIPASS catalogue III. Optical counterparts and isolated
 

Summary:  extinction <1 mag. Right: enlargement showing the rapid decrease in the number of galaxies as the mass-to-light... ratio increases out to 13 MH I /LBj and one high mass-to-light ratio LSB galaxy where the image analysis... dark galaxies have been found. 4.4 Mass-to-light ratio We investigate the ...

  

Source: Zwaan, Martin - European Southern Observatory, Garching

 

Collection: Physics

 
100 On the central structure of M15 Holger Baumgardt1
 

Summary:  and the expected profile calculated from the distribution of stars with V < 22, as- suming a constant mass-to-light... , using the Jeans equation with an isotropic velocity distribution and a constant mass-to-light ratio... different methods and averaging the results. They first assume a constant ...

  

Source: Baumgardt, Holger - Argelander-Institut für Astronomie, Universität Bonn

 

Collection: Physics


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