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Related papers: Galaxy Groups in the SDSS DR4: III. the luminosity…

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We use a sample of galaxy groups selected from the SDSS DR 4 with an adaptive halo-based group finder to probe how the clustering strength of groups depends on their masses and colors. In particular, we determine the relative biases of…

Astrophysics · Physics 2009-11-19 Yu Wang , Xiaohu Yang , H. J. Mo , Frank C. van den Bosch , Simone M. Weinmann , Yaoquan Chu

From a carefully selected sample of $52\,089$ galaxies and $10\,429$ groups, we investigate the variation of the low-redshift galaxy stellar mass function (GSMF) in the equatorial Galaxy And Mass Assembly (GAMA) dataset as a function of…

Astrophysics of Galaxies · Physics 2025-03-28 A. Sbaffoni , J. Liske , S. P. Driver , A. S. G. Robotham , E. N. Taylor

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

We measure the stellar mass function (SMF) of galaxies in the COSMOS field up to $z\sim6$. We select them in the near-IR bands of the COSMOS2015 catalogue, which includes ultra-deep photometry from UltraVISTA-DR2, SPLASH, and…

In this work, we use measurements of galaxy stellar mass and two-point angular correlation functions to constrain the stellar-to-halo mass ratios (SHMRs) of passive and \np\ galaxies at $z\sim2-3$, as identified in the \emph{Spitzer}…

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 study the galaxy cosmological mass function (GCMF) in a semi-empirical relativistic approach using observational data provided by galaxy redshift surveys. Starting from the theory of Ribeiro & Stoeger (2003, arXiv:astro-ph/0304094)…

Astrophysics of Galaxies · Physics 2014-12-04 Amanda R. Lopes , Alvaro Iribarrem , Marcelo B. Ribeiro , William R. Stoeger

We use a modified version of the halo-based group finder developed by Yang et al. to select galaxy groups from the Sloan Digital Sky Survey (SDSS DR4). In the first step, a combination of two methods is used to identify the centers of…

Astrophysics · Physics 2009-07-28 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch , Anna Pasquali , Cheng Li , Marco Barden

The Conditional Colour-Magnitude Distribution (CCMD) is a comprehensive formalism of the colour-magnitude-halo mass relation of galaxies. With joint modelling of a large sample of SDSS galaxies in fine bins of galaxy colour and luminosity,…

Astrophysics of Galaxies · Physics 2024-10-17 Haojie Xu , Zheng Zheng , Xiaohu Yang , Qingyang Li , Hong Guo

How galaxies form, assemble, and cease their star-formation is a central question within the modern landscape of galaxy evolution studies. These processes are indelibly imprinted on the galaxy stellar mass function (SMF). We present…

We use a SDSS galaxy group catalogue to study the dependence of galaxy activity on stellar mass, halo mass, and group hierarchy (centrals vs. satellites). We split our galaxy sample in star-forming galaxies, galaxies with optical AGN…

Astrophysics · Physics 2009-11-13 Anna Pasquali , Frank C. van den Bosch , H. J. Mo , Xiaohu Yang , Rachel Somerville

In addition to the large systematic differences arising from assumptions about the stellar mass-to-light ratio, the massive end of the stellar mass function is rather sensitive to how one fits the light profiles of the most luminous…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 M. Bernardi , A. Meert , R. K. Sheth , V. Vikram , M. Huertas-Company , S. Mei , F. Shankar

We present new results on the relationship between central galaxies and dark matter haloes inferred from observations of satellite kinematics in the Sloan Digital Sky Survey (SDSS) DR7. We employ an updated analysis framework that includes…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-22 Johannes U. Lange , Frank C. van den Bosch , Andrew R. Zentner , Kuan Wang , Antonia S. Villarreal

We present a new analysis of stellar mass functions (MF) in the COSMOS field to fainter limits than has been previously probed to z~1. Neither the total nor the passive or star-forming MF can be well fit with a single Schechter function…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 N. Drory , K. Bundy , A. Leauthaud , N. Scoville , P. Capak , O. Ilbert , J. S. Kartaltepe , J. P. Kneib , H. J. McCracken , M. Salvato , D. B. Sanders , D. Thompson , C. J. Willott

Using photometric galaxies from the HSC survey, we measure the stellar mass density profiles for satellite galaxies as a function of the projected distance, $r_p$, to isolated central galaxies (ICGs) selected from SDSS/DR7 spectroscopic…

We use a complete and uniform sample of almost half a million galaxies from the Sloan Digital Sky Survey to characterise the distribution of stellar mass in the low-redshift Universe. Galaxy abundances are well determined over almost four…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Cheng Li , Simon D. M. White

We quantify the systematic effects on the stellar mass function which arise from assumptions about the stellar population, as well as how one fits the light profiles of the most luminous galaxies at z ~ 0.1. When comparing results from the…

Astrophysics of Galaxies · Physics 2017-03-01 M. Bernardi , A. Meert , R. K. Sheth , J. -L. Fischer , M. Huertas-Company , C. Maraston , F. Shankar , V. Vikram

Galaxy-galaxy weak lensing is a direct probe of the mean matter distribution around galaxies. The depth and sky coverage of the CFHT Legacy Survey yield statistically significant galaxy halo mass measurements over a much wider range of…