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A large deep and nearly complete B<24.5 redshift sample is used to measure the change in distribution function of the stellar mass production rate in individual galaxies with redshift. The evolution of the star formation rate distribution…

天体物理学 · 物理学 2009-10-30 Lennox L. Cowie , Esther M. Hu , Antoinette Songaila , Eiichi Egami

Star formation rate and accummulated stellar mass are two fundamental physical quantities that describe the evolutionary state of a forming galaxy. Two recent attempts to determine the relationship between these quantities, by interpreting…

宇宙学与河外天体物理 · 物理学 2015-05-20 Martin Stringer , Shaun Cole , Carlos S. Frenk , Daniel P. Stark

Using a compilation of measurements of the stellar mass density as a function of redshift we can infer the cosmic star formation history. For z < 0.7 there is good agreement between the two star formation histories. At higher redshifts the…

天体物理学 · 物理学 2008-03-31 S. M. Wilkins , N. Trentham , A. M. Hopkins

We present a compilation of measurements of the stellar mass density as a function of redshift. Using this stellar mass history we obtain a star formation history and compare it to the instantaneous star formation history. For z<0.7 there…

天体物理学 · 物理学 2009-11-13 Stephen M. Wilkins , Neil Trentham , Andrew M. Hopkins

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

Constraining the star formation histories (SFHs) of individual galaxies is crucial to understanding the mechanisms that regulate their evolution. Here, we combine multi-wavelength (ultraviolet, optical, and infrared) measurements of a very…

星系天体物理 · 物理学 2016-06-15 Camilla Pacifici , Sree Oh , Kyuseok Oh , Jaehyun Lee , Sukyoung K. Yi

The redshift dependence of the luminosity density in certain wavebands (e.g. UV and H-alpha) can be used to infer the history of star formation in the populations of galaxies producing this luminosity. This history is a useful datum in…

天体物理学 · 物理学 2009-10-31 J. Afonso , L. Cram , B. Mobasher

Observing massive galaxies at various redshifts is one of the most straightforward and direct approaches towards understanding galaxy formation. There is now largely a consensus that the massive galaxy (M_* > 10^11 M_0) population is fully…

天体物理学 · 物理学 2008-06-17 Christopher J. Conselice

Knowledge of both the global star formation history of the universe and the nature of individual star-forming galaxies at different look-back times is essential to our understanding of galaxy formation and evolution. Deep redshift surveys…

天体物理学 · 物理学 2009-11-10 S. Pascual

Star formation history shows a gradual decline since the last 8-9 Gyr (z=1). The bulk of present-day stellar mass and metal content was formed at redshifts lower than 2-3, which is consistent with a hierarchical scenario of galaxy…

天体物理学 · 物理学 2007-05-23 F. Hammer , H. Flores

Using the first 50% of data collected for the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH) observations on the 1.8 deg$^2$ Cosmological Evolution Survey (COSMOS) we estimate the masses and star formation rates of 3398…

Over the past decade increasingly robust estimates of the dense molecular gas content in galaxy populations between redshift 0 and the peak of cosmic galaxy/star formation from redshift 1-3 have become available. This rapid progress has…

星系天体物理 · 物理学 2020-11-11 Linda J. Tacconi , Reinhard Genzel , Amiel Sternberg

The apparent correlation between the specific star formation rate (sSFR) and total stellar mass (M_star) of galaxies is a fundamental relationship indicating how they formed their stellar populations. To attempt to understand this relation,…

星系天体物理 · 物理学 2015-05-13 M. D. Lehnert , W. van Driel , L. Le Tiran , P. Di Matteo , M. Haywood

We analyze the star formation history (SFH) of galaxies as a function of present-day environment, galaxy stellar mass and morphology. The SFH is derived by means of a non-parametric spectrophotometric model applied to individual galaxies at…

Recent observations have demonstrated a significant growth in the integrated stellar mass of the red sequence since z=1, dominated by a steadily increasing number of galaxies with stellar masses M* < 10^11 M_sun. In this paper, we use the…

The history of galaxy formation via star formation and stellar mass assembly rates is now known with some certainty, yet the connection between high redshift and low redshift galaxy populations is not yet clear. By identifying and studying…

天体物理学 · 物理学 2017-03-29 Christopher J. Conselice

I discuss current observational constraints on the star-formation and stellar-assembly histories of galaxies at high redshifts. The data on massive galaxies at z<1 implies that their stellar populations formed at z>2, and that their…

天体物理学 · 物理学 2015-06-24 Casey Papovich

This paper presents a review of the topic of galaxy formation and evolution, focusing on basic features of galaxies, and how these observables reveal how galaxies and their stars assemble over cosmic time. I give an overview of the observed…

宇宙学与河外天体物理 · 物理学 2012-12-27 Christopher J. Conselice

The cosmic star formation rate density first increases with time towards a pronounced peak 10 Gyrs ago (or z=1-2) and then slows down, dropping by more than a factor 10 since z=1. The processes at the origin of the star formation quenching…

星系天体物理 · 物理学 2017-01-11 F. Combes , the PHIBSS collaboration

We investigate the resolved star formation properties of a sample of 45 massive galaxies (M_*>10^11M_solar) within a redshift range of 1.5 < z < 3 detected in the GOODS NICMOS Survey (Conselice et al. 2011), a HST H-band imaging program. We…

宇宙学与河外天体物理 · 物理学 2012-12-17 Jamie R. Ownsworth , Christopher J. Conselice , Alice Mortlock , William G. Hartley , Fernando Buitrago
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