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We investigate the role that dense environments have on the quenching of star formation and the transformation of morphology for a sample of galaxies selected from the Sloan Digital Sky Survey. We make a distinction between galaxies falling…

星系天体物理 · 物理学 2026-02-24 M. Oxland , L. C. Parker , R. R. de Carvalho , V. M. Sampaio

We measure the clustering of low-redshift SDSS galaxies as a function of stellar mass ($10.0<\log(M_*/M_\odot)<11.5$) and specific star formation rate (sSFR) and compare the results to models of the galaxy--halo connection. We find that the…

We analyze the clustering of red and blue galaxies from four samples spanning a redshift range of 0.4<z<2.0 to test the various scenarios by which galaxies evolve onto the red sequence. The data are taken from the UKIDSS Ultra Deep Survey,…

宇宙学与河外天体物理 · 物理学 2011-02-11 Jeremy L. Tinker , Andrew R. Wetzel

We study the stellar mass distribution for galaxies in 160 X-ray detected groups of 10^13<Log(M_200/M_sun)<2x10^14 and compare it with that of galaxies in the field, to investigate the action of environment on the build up of the stellar…

宇宙学与河外天体物理 · 物理学 2015-06-03 S. Giodini , A. Finoguenov , D. Pierini , G. Zamorani , O. Ilbert , S. Lilly , Y. Peng , N. Scoville , M. Tanaka

We present an analysis of galaxies in groups and clusters at $0.8<z<1.2$, from the GCLASS and GEEC2 spectroscopic surveys. We compute a "conversion fraction" $f_{\rm convert}$ that represents the fraction of galaxies that were prematurely…

We investigate the quenching properties of central and satellite galaxies, utilizing the halo masses and central-satellite identifications from the SDSS galaxy group catalog of Yang et al. We find that the quenched fractions of centrals and…

星系天体物理 · 物理学 2018-07-04 Enci Wang , Huiyuan Wang , Houjun Mo , S. H. Lim , Frank C. van den Bosch , Xu Kong , Lixin Wang , Xiaohu Yang , Sihan Chen

We present new determinations of the stellar-to-halo mass relation (SHMR) at $z=0-10$ that match the evolution of the galaxy stellar mass function, the SFR$-M_*$ relation,and the cosmic star formation rate. We utilize a compilation of 40…

星系天体物理 · 物理学 2017-06-28 Aldo Rodriguez-Puebla , Joel R. Primack , Vladimir Avila-Reese , S. M. Faber

The environment-dependent bimodality of the distribution of stellar mass ($M_\ast$) and specific star formation rate (sSFR) of galaxies, and its explanation in terms of the central-satellite dichotomy, form a cornerstone of our current…

星系天体物理 · 物理学 2020-09-09 Jolanta Zjupa , Aseem Paranjape , Oliver Hahn , Rüdiger Pakmor

We study the quenching of satellite galaxies by gradual depletion of gas due to star formation, by ram-pressure striping and by tidally triggered starburst. Using progenitors constrained by the empirical model of Lu et al., in which outflow…

星系天体物理 · 物理学 2015-06-16 Zhankui Lu , H. J. Mo

Galaxy morphologies and star-formation rates depend on environment. Galaxies in under-dense regions are generally star-forming and disky whereas galaxies in overdense regions tend to be early-type and not actively forming stars. The…

星系天体物理 · 物理学 2015-11-04 Ian D. Roberts , Laura C. Parker , Ananthan Karunakaran

We investigate the contribution of star formation to the growth of stellar mass in galaxies over the redshift range 0.5 < z < 1.1 by studying the redshift evolution of the specific star formation rate (SSFR), defined as the star formation…

天体物理学 · 物理学 2009-09-01 Georg Feulner , Yuliana Goranova , Niv Drory , Ulrich Hopp , Ralf Bender

We combine observations of the Local Group with data from the NASA-Sloan Atlas to show the variation in the quenched fraction of satellite galaxies from low mass dwarf spheroidals and dwarf irregulars to more massive dwarfs similar to the…

星系天体物理 · 物理学 2015-06-22 Colin T. Slater , Eric F. Bell

We construct a sample of 75,863 star forming galaxies with robust metallicity and star formation rate measurements from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), from which we select a clean sample of compact group (CG)…

宇宙学与河外天体物理 · 物理学 2015-06-04 Jillian M. Scudder , Sara L. Ellison , J. Trevor Mendel

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…

宇宙学与河外天体物理 · 物理学 2015-05-14 Aaron A. Dutton , Frank C. van den Bosch , Avishai Dekel

We investigate the correlation of star formation quenching with internal galaxy properties and large scale environment (halo mass) in empirical data and theoretical models. We make use of the halo-based Group Catalog of Yang and…

We present the star-forming properties of 378 satellite galaxies around 101 Milky Way analogs in the Satellites Around Galactic Analogs (SAGA) Survey, focusing on the environmental processes that suppress or quench star formation. In the…

We make use of a catalog of 1600 Pan-STARRS1 groups produced by the probability friends-of-friends algorithm to explore how the galaxy properties, i.e. the specific star formation rate (SSFR) and quiescent fraction, depend on stellar mass…

We study the evolution of the star formation rate (SFR) of mid-infrared (IR) selected galaxies in the extended Chandra Deep Field South (E-CDFS). We use a combination of U-K GaBoDS and MUSYC data, deep IRAC observations from SIMPLE, and…

天体物理学 · 物理学 2008-12-18 Maaike Damen , Ivo Labbe , Marijn Franx , Pieter G. van Dokkum , Edward N. Taylor , Eric J. Gawiser

We explore the role of environment in the evolution of galaxies over 0.1<z<0.7 using the final zCOSMOS-bright data set. Using the red fraction of galaxies as a proxy for the quenched population, we find that the fraction of red galaxies…

We measure how the properties of star-forming central galaxies correlate with large-scale environment, $\delta$, measured on $10$Mpc/h scales. We use group catalogs to isolate a robust sample of central galaxies with high purity and…

星系天体物理 · 物理学 2018-06-06 Jeremy L. Tinker , ChangHoon Hahn , Yao-Yuan Mao , Andrew R. Wetzel