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We investigate the relation between galaxy structure and star formation rate (SFR) in a sample of $\sim2.9\times10^{4}$ central galaxies with $z<0.0674$ and axial ratios $b/a>0.5$. The star-forming main sequence (SFMS) shows a bend around…

Distant galaxies show correlations between their current star-formation rates (SFRs) and stellar masses, implying that their star-formation histories (SFHs) are highly similar. Moreover, observations show that the UV luminosities and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Casey Papovich , Steven L. Finkelstein , Henry C. Ferguson , Jennifer M. Lotz , Mauro Giavalisco

We measure the evolution of the specific star formation rate (sSFR = SFR / Mstellar) between redshift 4 and 6 to investigate the previous reports of "constant" sSFR at z>2. We obtain photometry on a large sample of galaxies at z~4-6 located…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Valentino Gonzalez , Rychard Bouwens , Garth llingworth , Ivo Labbe , Pascal Oesch , Marijn Franx , Dan Magee

We trace the specific star formation rate (sSFR) of massive star-forming galaxies ($\gtrsim\!10^{10}\,\mathcal{M}_\odot$) from $z\sim2$ to 7. Our method is substantially different from previous analyses, as it does not rely on direct…

Astrophysics of Galaxies · Physics 2018-01-31 Iary Davidzon , Olivier Ilbert , Andreas L. Faisst , Martin Sparre , Peter L. Capak

We measure star-formation rates (SFRs) and specific SFRs (SSFRs) of Ks-selected galaxies from the VIDEO survey by stacking 1.4-GHz Very Large Array data. We split the sample, which spans 0 < z < 3 and stellar masses 10**8.0 < Mstellar/Msol…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Jonathan T. L. Zwart , Matt J. Jarvis , Roger P. Deane , David G. Bonfield , Kenda Knowles , Nikhita Madhanpall , Hadi Rahmani , Daniel J. B. Smith

We explore the build-up of stellar mass in galaxies over a wide redshift range 0.4 < z < 5.0 by studying the evolution of the specific star formation rate (SSFR), defined as the star formation rate per unit stellar mass, as a function of…

Astrophysics · Physics 2009-09-01 Georg Feulner , Armin Gabasch , Mara Salvato , Niv Drory , Ulrich Hopp , Ralf Bender

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…

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…

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…

The observed evolution of the gas fraction and its associated depletion time in main sequence (MS) galaxies provides insights on how star formation proceeds over cosmic time. We report ALMA detections of the rest-frame $\sim$300$\mu$m…

Astrophysics of Galaxies · Physics 2016-12-21 E. Schinnerer , B. Groves , M. T. Sargent , A. Karim , P. A. Oesch , B. Magnelli , O. LeFevre , L. Tasca , F. Civano , P. Cassata , V. Smolcic

We report the results of a comprehensive study of the relationship between galaxy size, stellar mass and specific star-formation rate (sSFR) at redshifts 1.3<z<1.5. Based on a mass complete (M_star >= 6x10^10 Msun), spectroscopic sample…

The slope of the star formation rate/stellar mass relation (the SFR "Main Sequence"; ${\rm SFR}-M_*$) is not quite unity: specific star formation rates $({\rm SFR}/M_*)$ are weakly-but-significantly anti-correlated with $M_*$. Here we…

Analyzing 24 mu m MIPS/Spitzer data and the [O II]3727 line of a sample of galaxies at 0.4 < z < 0.8 from the ESO Distant Cluster Survey (EDisCS), we investigate the ongoing star formation rate (SFR) and the specific star formation rate…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Benedetta Vulcani , Bianca M. Poggianti , Rose A. Finn , Gregory Rudnick , Vandana Desai , Steven Bamford

We present a formalism to infer the presence of merging by comparing the time derivative of the observed galaxy stellar mass function (MF) to the change of the MF expected from the star formation rate (SFR) in galaxies as a function of mass…

Astrophysics · Physics 2009-11-13 Niv Drory , Marcelo Alvarez

A large sample of spectroscopically confirmed galaxies at 1.4<z<3.7, with complementary imaging in the near- and mid-IR from the ground and from Hubble and Spitzer, is used to infer the average star formation histories (SFHs) of typical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Naveen A. Reddy , Max Pettini , Charles C. Steidel , Alice E. Shapley , Dawn K. Erb , David R. Law

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

This work aims to determine how the galaxy main sequence (MS) changes using seven different commonly used methods to select the star-forming galaxies within VIPERS data over $0.5 \leq z < 1.2$. The form and redshift evolution of the MS will…

Astrophysics of Galaxies · Physics 2023-11-01 W. J. Pearson , F. Pistis , M. Figueira , K. Małek , T. Moutard , D. Vergani , A. Pollo

We revisit the extensively debated star-forming main sequence (SFMS)-a tight correlation between the star formation rate and stellar mass in both kiloparsec-resolved and integrated galaxies. We statistically explore the fundamental drivers…

In this paper, we test the age matching hypothesis that the star formation rate (SFR) of a galaxy of fixed stellar mass is determined by its dark matter halo formation history, and as such, that more quiescent galaxies reside in older…

We aim to discern scenarios of structural evolution of intermediate to high-mass star-forming galaxies (SFGs) since cosmic noon by comparing their stellar mass profiles with present-day stellar masses of…

Astrophysics of Galaxies · Physics 2024-10-10 Maryam Hasheminia , Moein Mosleh , S. Zahra Hosseini-ShahiSavandi , Sandro Tacchella