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Massive galaxies are key probes to understand how the baryonic matter evolves within the dark matter halos. We use the "archaeological" approach to infer the stellar population properties and star formation histories of the most massive (M…

Astrophysics of Galaxies · Physics 2016-07-13 Annalisa Citro , Lucia Pozzetti , Michele Moresco , Andrea Cimatti

For a mass-selected sample of 66544 galaxies with photometric redshifts from the Cosmic Evolution Survey (COSMOS), we examine the evolution of star formation activity as a function of stellar mass in galaxies. We estimate the cosmic star…

We explore the epoch dependence of number density and star-formation rate for submillimetre galaxies (SMGs) found at 850 um. The study uses a sample of 38 SMG in the GOODS-N field, for which cross-waveband identifications have been obtained…

Astrophysics · Physics 2009-11-13 J. V. Wall , Alexandra Pope , D. S. Scott

We use hydrodynamic cosmological simulations to predict the star formation properties of high-redshift galaxies (z=2-6) in five variants of the inflationary cold dark matter scenario, paying particular attention to z=3, the redshift of the…

Astrophysics · Physics 2009-10-31 David H. Weinberg , Lars Hernquist , Neal Katz

Recent studies have found a dramatic difference between the observed number density evolution of low mass galaxies and that predicted by semi-analytic models. While models accurately reproduce the z=0 number density, they require that the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Simone M. Weinmann , Anna Pasquali , Benjamin D. Oppenheimer , Kristian Finlator , J. Trevor Mendel , Robert A. Crain , Andrea V. Maccio

We describe the luminosity function, based on Sersic fits to the light profiles, of CMASS galaxies at z ~ 0.55. Compared to previous estimates, our Sersic-based reductions imply more luminous, massive galaxies, consistent with the effects…

Astrophysics of Galaxies · Physics 2015-12-16 M. Bernardi , A. Meert , R. K. Sheth , M. Huertas-Company , C. Maraston , F. Shankar , V. Vikram

We investigate the growth of massive quiescent galaxies at $z<0.6$ based on the Sloan Digital Sky Survey and the Smithsonian Hectospec Lensing Survey---two magnitude limited spectroscopic surveys of high data quality and completeness. Our…

Astrophysics of Galaxies · Physics 2019-08-07 H. Jabran Zahid , Margaret J. Geller , Ivana Damjanov , Jubee Sohn

We characterize the mass-dependent evolution in a large sample of more than 8,000 galaxies using spectroscopic redshifts drawn from the DEEP2 Galaxy Redshift Survey in the range 0.4 < z < 1.4 and stellar masses calculated from K-band…

Matsuoka & Kawara (2010) showed that the number density of the most massive galaxies (log M/M_sun=11.5-12.0) increases faster than that of the next massive group (log M/M_sun=11.0-11.5) during 0 < z < 1. This appears to be in contradiction…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Jaehyun Lee , Sukyoung K. Yi

We study the redshift evolution of the dynamical properties of ~180,000 massive galaxies from SDSS-III/BOSS combined with a local early-type galaxy sample from SDSS-II in the redshift range 0.1<z< 0.6. The typical stellar mass of this…

We present a new model to describe the galaxy-dark matter connection across cosmic time, which unlike the popular subhalo abundance matching technique is self-consistent in that it takes account of the facts that (i) subhalos are accreted…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch , Youcai Zhang , Jiaxin Han

We explore the relations between size, stellar mass and average stellar population age (indicated by D$_n4000$ indices) for a sample of $\sim11000$ intermediate-redshift galaxies from the SHELS spectroscopic survey (Geller et al. 2014)…

Astrophysics of Galaxies · Physics 2019-02-20 Ivana Damjanov , H. Jabran Zahid , Margaret J. Geller , Yousuke Utsumi , Jubee Sohn , Harrison Souchereau

We use the deep wide-field optical imaging data of the Subaru/XMM-Newton Deep Survey (SXDS) to discuss the luminosity (mass) dependent galaxy colours down to z'=25.0 (5 x 10^9 h_{70}^{-2} Msun) for z~1 galaxies in colour-selected high…

Astrophysics · Physics 2010-04-06 Tadayuki Kodama

We explore the interrelationships between the galaxy group halo mass and various observable group properties. We propose a simple scenario that describes the evolution of the central galaxies and their host dark matter halos. Star formation…

Astrophysics of Galaxies · Physics 2019-08-21 Zhong-yi Man , Ying-jie Peng , Jing-jing Shi , Xu Kong , Cheng-peng Zhang , Jing Dou , Ke-xin Guo

We use a semi-analytic model for disk galaxies to explore the origin of the time evolution and small scatter of the galaxy SFR sequence -- the tight correlation between star-formation rate (SFR) and stellar mass (M_star). The steep decline…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Aaron A. Dutton , Frank C. van den Bosch , Avishai Dekel

Dedicated photometric and spectroscopic surveys have provided unambiguous evidence for a strong stellar mass-size evolution of galaxies within the last 10 Gyr. The likely progenitors of today's most massive galaxies are remarkably small,…

We use surveys covering the redshift range $0.05 < z < 3.8$ to explore quiescent galaxy scaling relations and the redshift evolution of the velocity dispersion, size, and dynamical mass at fixed stellar mass. For redshift $z < 0.6$ we…

Astrophysics of Galaxies · Physics 2022-04-20 Ivana Damjanov , Jubee Sohn , Yousuke Utsumi , Margaret J. Geller , Ian Dell'Antonio

We use the halo occupation distribution (HOD) framework to characterise the predictions from two independent galaxy formation models for the galactic content of dark matter haloes and its evolution with redshift. Our galaxy samples…

Astrophysics of Galaxies · Physics 2016-12-16 S. Contreras , I. Zehavi , C. M. Baugh , N. Padilla , P. Norberg