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Using the CANDELS photometric catalogs for the HST/ACS and WFC3, we identified massive evolved galaxies at $3 < z < 4.5$, employing three different selection methods. We find the comoving number density of these objects to be $\sim 2 \times…

We have analysed a sample of 1292 4.5 micron-selected galaxies at z>=3, over 0.6 square degrees of the UKIRT Infrared Deep Survey (UKIDSS) Ultra Deep Survey (UDS). Using photometry from the U band through 4.5 microns, we have obtained…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 K. I. Caputi , M. Cirasuolo , J. S. Dunlop , R. J. McLure , D. Farrah , O. Almaini

We present a study on the clustering of a stellar mass selected sample of galaxies with stellar masses M*>10^10Msol at redshifts 0.4<z<2.0, taken from the Palomar Observatory Wide-field Infrared Survey. We examine the clustering properties…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-25 Sebastien Foucaud , Christopher J. Conselice

The James Webb Space Telescope continues to push back the redshift frontier to ever earlier cosmic epochs, with recent announcements of galaxy candidates at redshifts of $15 \lesssim z \lesssim 30$. We leverage the recent GUREFT suite of…

Astrophysics of Galaxies · Physics 2025-10-29 L. Y. Aaron Yung , Rachel S. Somerville , Kartheik G. Iyer

The \emph{Spitzer} Matching Survey of the UltraVISTA ultra-deep Stripes (SMUVS) provides unparalleled depth at $3.6$ and $4.5$~$\mu$m over $\sim0.66$~deg$^2$ of the COSMOS field, allowing precise photometric determinations of redshift and…

Observations with the {\it James Webb Space Telescope} have revealed a high abundance of bright galaxies at redshift, $z\gtrsim 12$, which has been widely interpreted as conflicting with the $\Lambda$CDM model. In Cowley et al. (2018)…

Astrophysics of Galaxies · Physics 2024-11-27 Shengdong Lu , Carlos S. Frenk , Sownak Bose , Cedric G. Lacey , Shaun Cole , Carlton M. Baugh , John C. Helly

We examine the present-day total stellar-to-halo mass (SHM) ratio as a function of halo mass for a new sample of simulated field galaxies using fully cosmological, LCDM, high resolution SPH + N-Body simulations.These simulations include an…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Ferah Munshi , F. Governato , A. M. Brooks , C. Christensen , S. Shen , S. Loebman , B. Moster , T. Quinn , J. Wadsley

We propose a novel use of high-redshift galaxies, discovered in deep Hubble Space Telescope (HST) fields around strong lensing clusters. These fields probe small comoving volumes (about 1000 cubic Mpc) at high magnification ({\mu} > 10),…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-15 Fabio Pacucci , Andrei Mesinger , Zoltan Haiman

The stellar mass-halo mass relation is a key constraint in all semi-analytic, numerical, and semi-empirical models of galaxy formation and evolution. However, its exact shape and redshift dependence remain debated. Several recent works…

We use high-resolution zoom-in cosmological simulations of galaxies of Romano-Diaz et al., post-processing them with a panchromatic three-dimensional radiation transfer code to obtain the galaxy UV luminosity function (LF) at z ~ 6-12. The…

Astrophysics of Galaxies · Physics 2015-08-06 Hidenobu Yajima , Isaac Shlosman , Emilio Romano-Diaz , Kentaro Nagamine

Massive galaxies display extended light profiles that can reach several hundreds of kilo parsecs. These stellar halos provide a fossil record of galaxy assembly histories. Using data that is both wide (~100 square degree) and deep (i>28.5…

How stellar mass assembles within galaxies is still an open question. We present measurements of the stellar mass distribution on kpc-scale for $\sim5500$ galaxies with stellar masses above $\log(M_{\ast}/M_{\odot})\geqslant9.8$ up to the…

Astrophysics of Galaxies · Physics 2021-01-06 Moein Mosleh , Shiva Hosseinnejad , S. Zahra Hosseini-ShahiSavandi , Sandro Tacchella

We present the dust mass function (DMF) of 15,750 galaxies with redshift $z< 0.1$, drawn from the overlapping area of the GAMA and {\it H-}ATLAS surveys. The DMF is derived using the density corrected $V_{\rm max}$ method, where we estimate…

During the last decades, rapid progress has been made in measurements of the rest-frame ultraviolet (UV) luminosity function (LF) for high-redshift galaxies ($z \geq 6$). The faint-end of the galaxy LF at these redshifts provides powerful…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-07 Yueying Ni , Mei-Yu Wang , Yu Feng , Tiziana Di Matteo

We examine the projected correlation of galaxies with mass from small scales (<few hundred kpc) where individual dark matter halos dominate, out to 15 Mpc where correlated large-scale structure dominates. We investigate these profiles as a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Ami Choi , J. Anthony Tyson , Chris B. Morrison , M. James Jee , Samuel J. Schmidt , Vera E. Margoniner , David M. Wittman

We present constraints on the stellar-mass distribution of distant galaxies. These stellar-mass estimates derive from fitting population-synthesis models to the galaxies' observed multi-band spectrophotometry. We discuss the complex…

Astrophysics · Physics 2009-11-07 Casey Papovich , Mark Dickinson , Harry Ferguson

We review theoretical approaches to the study of galaxy formation, with emphasis on the role of hydrodynamic simulations in modeling the high redshift galaxy population. We present new predictions for the abundance of star-forming galaxies…

Astrophysics · Physics 2007-05-23 David H. Weinberg , Romeel Dave' , Jeffrey P. Gardner , Lars Hernquist , Neal Katz

We calculate stellar masses for massive luminous galaxies at redshift 0.2-0.7 using the first two years of data from the Baryon Oscillation Spectroscopic Survey (BOSS). Stellar masses are obtained by fitting model spectral energy…

abridged: We use a complete sample of about 140,000 galaxies from the Sloan Digital Sky Survey (SDSS) to study the size distribution of galaxies and its dependence on their luminosity, stellar mass, and morphological type. The large SDSS…