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We compare the growth in stellar mass of galaxies in the $6<z<12$ epoch with predictions of a semi-analytic galaxy formation model - Galacticus. In contrast to diverse and controversial results that compare models and data for the…

Astrophysics of Galaxies · Physics 2026-02-03 Alan Dressler , Andrew Benson

The Star-Forming Main Sequence (SFMS) serves as a critical framework for understanding galaxy evolution, highlighting the relationship between star formation rates (SFR) and stellar masses M_* across cosmic time. Despite its significance,…

Astrophysics of Galaxies · Physics 2026-03-10 Zhicheng He , Enci Wang , Luis C. Ho , Huiyuan Wang , Yong Shi , Xu Kong , Tinggui Wang

We have constructed a family of simple models for spiral galaxy evolution to allow us to investigate observational trends in star formation history with galaxy parameters. The models are used to generate broad band colours from which ages…

Astrophysics · Physics 2009-10-31 Eric F. Bell , Richard G. Bower

The stellar metallicity gradients of disc galaxies provide information on the disc assembly, star formation processes and chemical evolution. They also might store information on dynamical processes which could affect the distribution of…

Using a sample of 299 Ha-selected galaxies at z~0.8, we study the relationship between galaxy stellar mass, gas-phase metallicity, and star formation rate (SFR), and compare to previous results. We use deep optical spectra obtained with the…

We show that a model consisting of individual, log-normal star formation histories for a volume-limited sample of $z\approx0$ galaxies reproduces the evolution of the total and quiescent stellar mass functions at $z\lesssim2.5$ and stellar…

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 investigate the evolution of star formation rates (SFRs), stellar masses, and M/L$_{3.4 \mu m}$ ratios of brightest cluster galaxies (BCGs) in the COSMOS survey since z ~ 1 to determine the contribution of star formation to the…

Astrophysics of Galaxies · Physics 2018-05-10 Kevin C. Cooke , Kevin Fogarty , Jeyhan S. Kartaltepe , John Moustakas , Christopher P. O'Dea , Marc Postman

We present a simple toy model to understand what sets the scatter in star formation and metallicity of galaxies at fixed mass. The scatter ultimately arises from the intrinsic scatter in the accretion rate, but may be substantially reduced…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 John C. Forbes , Mark R. Krumholz , Andreas Burkert , Avishai Dekel

Elliptical galaxies probably host the most metal rich stellar populations in the Universe. The processes leading to both the formation and the evolution of such stars are discussed by means of a new multi-zone photo-chemical evolution…

Astrophysics · Physics 2007-05-23 Antonio Pipino , Francesca Matteucci

Observations show that galaxies follow a mass-metallicity relation over a wide range of masses. One currently favoured explanation is that less massive galaxies are less able to retain the gas and stellar ejecta and thus may lose the…

Astrophysics · Physics 2008-11-26 J. Koeppen , C. Weidner , P. Kroupa

Observations show that star formation in galaxies is closely correlated with the abundance of molecular hydrogen. Modeling this empirical relation from first principles proves challenging, however, and many questions regarding its…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 R. Feldmann

We provide a coherent, uniform measurement of the evolution of the logarithmic star formation rate (SFR) - stellar mass ($M_*$) relation, called the main sequence of star-forming galaxies (MS), for galaxies out to $z\sim5$. We measure the…

The star-forming main sequence of galaxies has now been observed out to redshifts of $z\sim6$ and beyond. However, it remains unclear how long typical galaxies remain on or near it as they evolve, and how frequently they return after…

Astrophysics of Galaxies · Physics 2026-05-06 Lucas C. Kimmig , Jesse van de Sande , Rhea-Silvia Remus , Klaus Dolag , Rebecca Davies , Deanne Fisher

Distant star-forming galaxies show a correlation between their star formation rates (SFR) and stellar masses, and this has deep implications for galaxy formation. Here, we present a study on the evolution of the slope and scatter of the…

The scatter (${\rm\sigma_{\text{sSFR}}}$) of the specific star formation rates (sSFRs) of galaxies is a measure of the diversity in their star formation histories (SFHs) at a given mass. In this paper we employ the EAGLE simulations to…

We compare predictions of a number of empirical models and numerical simulations of galaxy formation to the conditional stellar mass functions (CSMF)of galaxies in groups of different masses obtained recently by Lan et al. to test how well…

Astrophysics of Galaxies · Physics 2016-10-12 Seunghwan Lim , Houjun Mo , Ting-Wen Lan , Brice Ménard

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 S. Giodini , A. Finoguenov , D. Pierini , G. Zamorani , O. Ilbert , S. Lilly , Y. Peng , N. Scoville , M. Tanaka

We present measurements of the specific star-formation rate (SSFR)-stellar mass relation for star-forming galaxies. Our deep spectroscopic samples are based on the Redshift One LDSS3 Emission line Survey, ROLES, and European Southern…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 David G. Gilbank , Richard G. Bower , Karl Glazebrook , Michael L. Balogh , I. K. Baldry , G. T. Davies , G. K. T. Hau , I. H. Li , P. McCarthy , M. Sawicki
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