3D-HST+CANDELS: THE EVOLUTION OF THE GALAXY SIZE–MASS DISTRIBUTION SINCE z = 3
A. van der Wel,Marijn Franx,P. G. van Dokkum,Rosalind E. Skelton,Ivelina Momcheva,Katherine E. Whitaker,Gabriel B. Brammer,Eric F. Bell,Hans-Walter Rix,Stijn Wuyts,Henry C. Ferguson,Bradford P. Holden,Guillermo Barro,Anton M. Koekemoer,Yu-Yen Chang,Elizabeth J. McGrath,B. Haussler,B. Haussler,Avishai Dekel,Peter Behroozi,Michele Fumagalli,Joel Leja,Britt Lundgren,Michael V. Maseda,Erica J. Nelson,David A. Wake,David A. Wake,Shannon G. Patel,Ivo Labbé,Sandra M. Faber,Norman A. Grogin,Dale D. Kocevski +31 more
TLDR
In this paper, the galaxy size-mass distribution over the redshift range 0 3 × 10{sup 9} M {sub ☉}, and steep, R{sub eff}∝M{sub ∗}{sup 0.75}, for early-type galaxies with stellar mass > 2 × 10,sup 10} M{sub ǫ, and the intrinsic scattermore is ≲0.2 dex for all galaxy types and redshifts.Abstract:
Spectroscopic+photometric redshifts, stellar mass estimates, and rest-frame colors from the 3D-HST survey are combined with structural parameter measurements from CANDELS imaging to determine the galaxy size-mass distribution over the redshift range 0 3 × 10{sup 9} M {sub ☉}, and steep, R{sub eff}∝M{sub ∗}{sup 0.75}, for early-type galaxies with stellar mass >2 × 10{sup 10} M {sub ☉}. The intrinsic scattermore » is ≲0.2 dex for all galaxy types and redshifts. For late-type galaxies, the logarithmic size distribution is not symmetric but is skewed toward small sizes: at all redshifts and masses, a tail of small late-type galaxies exists that overlaps in size with the early-type galaxy population. The number density of massive (∼10{sup 11} M {sub ☉}), compact (R {sub eff} < 2 kpc) early-type galaxies increases from z = 3 to z = 1.5-2 and then strongly decreases at later cosmic times.« lessread more
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The new semi-analytic code GalICS 2.0 – reproducing the galaxy stellar mass function and the Tully–Fisher relation simultaneously
A. Cattaneo,J. Blaizot,Julien Devriendt,Gary A. Mamon,E. Tollet,Avishai Dekel,B. Guiderdoni,M. Kucukbas,Adrien C. R. Thob +8 more
TL;DR: GalICS 2.0 as discussed by the authors is a new semianalytic code to model the formation and evolution of galaxies in a cosmological context, which is able to reproduce the galaxy stellar mass function and the Tully-Fisher relation simultaneously.
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H I 21-cm absorption survey of quasar-galaxy pairs: Distribution of cold gas around z < 0.4 galaxies
Rajeshwari Dutta,Raghunathan Srianand,N. Gupta,Emmanuel Momjian,Pasquier Noterdaeme,Patrick Petitjean,Hadi Rahmani +6 more
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ZFIRE: The Evolution of the Stellar Mass Tully-Fisher Relation to Redshift 2.0 < Z < 2.5 with MOSFIRE
Caroline M. S. Straatman,Karl Glazebrook,Glenn G. Kacprzak,Ivo Labbé,Themiya Nanayakkara,Leo Y. Alcorn,Michael J. Cowley,Lisa J. Kewley,Lee R. Spitler,Kim-Vy Tran,Tiantian Yuan +10 more
TL;DR: In this paper, the Tully-Fisher relation at 2.0 < z < 2.5 has been analyzed using observations made with MOSFIRE on Keck I as part of the ZFIRE survey.
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Early-type galaxy density profiles from IllustrisTNG - I. Galaxy correlations and the impact of baryons
Yunchong Wang,Yunchong Wang,Mark Vogelsberger,Dandan Xu,Shude Mao,Shude Mao,Volker Springel,Hui Li,David J. Barnes,Lars Hernquist,Annalisa Pillepich,Federico Marinacci,Ruediger Pakmor,Rainer Weinberger,Paul Torrey +14 more
TL;DR: In this article, the authors explore the isothermal total density profiles of early-type galaxies (ETGs) in the IllustrisTNG simulation, revealing that the ETG dark matter halos are well-described by steeper-than-NFW profiles, and they are steeper in the full physics (FP) run than their counterparts in the dark matter only (DMO) run.
Journal ArticleDOI
Observed trend in the star formation history and the dark matter fraction of galaxies at redshift z ≈ 0.8
TL;DR: In this paper, the authors studied the star formation history of 154 galaxies with stellar mass in the redshift range 0.7 < z < 0.9 and found that the most massive galaxies are already passive, while lower mass ones have a more extended star formation histories.
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