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
Citations
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A massive, dead disk galaxy in the early Universe
Sune Toft,Johannes Zabl,Johannes Zabl,Johan Richard,Anna Gallazzi,Stefano Zibetti,Moire K. M. Prescott,Claudio Grillo,Allison W. S. Man,N. Lee,Carlos Gómez-Guijarro,Mikkel Stockmann,Georgios E. Magdis,Charles L. Steinhardt +13 more
TL;DR: An analysis of the stellar populations and kinematics of a lensed z = 2.1478 compact galaxy, which—surprisingly—turns out to be a fast-spinning, rotationally supported disk galaxy that must have formed in a disk, rather than in a merger-driven nuclear starburst.
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A massive galaxy in its core formation phase three billion years after the Big Bang
Erica J. Nelson,Pieter van Dokkum,Marijn Franx,Gabriel B. Brammer,Ivelina Momcheva,Natascha M. Förster Schreiber,Elisabete da Cunha,Linda J. Tacconi,Rachel Bezanson,Allison Kirkpatrick,Joel Leja,Hans-Walter Rix,Rosalind E. Skelton,Arjen van der Wel,Katherine E. Whitaker,Stijn Wuyts +15 more
TL;DR: From the star formation rate and size of this galaxy, GOODS-N-774, it is infer that many star-forming cores may be heavily obscured, and could be missed in optical and near-infrared surveys.
Journal ArticleDOI
A consistent measure of the merger histories of massive galaxies using close-pair statistics I: Major mergers at $z < 3.5$
Carl J. Mundy,Christopher J. Conselice,Kenneth Duncan,Kenneth Duncan,Omar Almaini,Boris Häußler,Boris Häußler,Boris Häußler,William G. Hartley,William G. Hartley,William G. Hartley +10 more
TL;DR: In this paper, the authors used a large sample of ∼350,000 galaxies constructed by combining the UKIDSS UDS, VIDEO/CFHT-LS, UltraVISTA/COSMOS and GAMA survey regions to probe the major merging histories of massive galaxies at 0.005 1010 M⊙ and at a constant number density of n>10−4 Mpc−3, and find rates a factor of 2-3 smaller than previous works, although this depends strongly on the assumed merger timescale and likelihood of a close-pair merging.
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Dust Attenuation, Bulge Formation, and Inside-out Quenching of Star Formation in Star-forming Main Sequence Galaxies at z ∼ 2
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Discovery of a galaxy cluster with a violently starbursting core at z=2.506
Tao Wang,Tao Wang,David Elbaz,Emanuele Daddi,Alexis Finoguenov,Daizhong Liu,Corentin Schreiber,Sergio Martín,Veronica Strazzullo,Francesco Valentino,Remco F. J. van der Burg,Anita Zanella,Laure Ciesla,Raphael Gobat,Amandine Le Brun,Maurilio Pannella,Mark Sargent,Xinwen Shu,Qinghua Tan,Nico Cappelluti,Yanxia Li +20 more
TL;DR: In this article, the authors reported the discovery of a massive galaxy with extended X-ray emission at 2.506, which contains 11 massive galaxies in the central 80kpc region (11.6$sigma$ overdensity).
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