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We compute the cosmic star formation rate (SFR) and the rest-frame comoving luminosity density in various pass-bands as a function of redshift using large-scale \Lambda-CDM hydrodynamical simulations with the aim of understanding their…

Astrophysics · Physics 2009-10-31 Kentaro Nagamine , Renyue Cen , Jeremiah P. Ostriker

Fitting synthetic spectral energy distributions (SED) to the multi-band photometry of galaxies to derive their star formation rates (SFR), stellar masses, ages, etc. requires making a priori assumptions about their star formation histories…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 C. Maraston , J. Pforr , A. Renzini , E. Daddi , M. Dickinson , A. Cimatti , C. Tonini

The relation between the Star Formation Rate (SFR) and stellar mass (${\rm M}_{\star}$) of galaxies represents a fundamental constraint on galaxy formation and has been studied extensively both in observations and cosmological simulations.…

Astrophysics of Galaxies · Physics 2016-07-06 A. Katsianis , E. Tescari , J. S. B. Wyithe

A debate is emerging regarding the recent inconsistent results of different studies for the Cosmic Star Formation Rate Density (CSFRD) at high-z. We employ UV and IR datasets to investigate the star formation rate function (SFRF) at ${\rm z…

Astrophysics of Galaxies · Physics 2021-10-04 Antonios Katsianis , Xiaohu Yang , Xianzhong Zheng

Using the most recent measurements of the ultraviolet (UV) luminosity functions (LFs) and dust estimates of early galaxies, we derive updated dust-corrected star-formation rate functions (SFRFs) at z~4-8, which we model to predict the…

Astrophysics of Galaxies · Physics 2015-10-22 Natalie Mashian , Pascal Oesch , Abraham Loeb

We have derived the bivariate luminosity function for the far ultraviolet (1530Angstroms) and far infrared (60 microns). We used matched GALEX and IRAS data, and redshifts from NED and PSC-z. We have derived a total star formation…

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Aaron A. Dutton , Frank C. van den Bosch , Avishai Dekel

The recent finding that the IGIMF (integrated galaxial initial stellar mass function) composed of all newly formed stars in all young star clusters has, in dependence of the SFR, a steeper slope in the high mass regime than the underlying…

Astrophysics · Physics 2009-11-13 Jan Pflamm-Altenburg , Carsten Weidner , Pavel Kroupa

We have quantified the average filamentarity of the galaxy distribution in seven nearly two dimensional strips from the SDSS DR5 using a volume limited sample in the absolute magnitude range -21 < M_r < -20. The average filamentarity of…

Astrophysics · Physics 2009-11-13 Biswajit Pandey , Somnath Bharadwaj

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 study integrated characteristics of ~14000 low-redshift (0<z<1) compact star-forming galaxies (SFGs) selected from the Data Release 12 of the Sloan Digital Sky Survey. It is found that emission of these galaxies is dominated by strong…

Astrophysics of Galaxies · Physics 2023-05-03 Y. I. Izotov , N. G. Guseva , K. J. Fricke , C. Henkel

We combine Spitzer 24micron observations with data from the COMBO-17 survey for ~15,000 0.2<z<1 galaxies to determine how the average star formation rates (SFR) have evolved for galaxy sub-populations of different stellar masses. In the…

We analyze star formation (SF) as a function of stellar mass (M_*) and redshift z in the All Wavelength Extended Groth Strip International Survey (AEGIS), for star-forming field galaxies with M_* >~ 10^10 M_sun out to z=1.1. The data…

We adapt the L-Galaxies semi-analytic model to follow the star-formation histories (SFH) of galaxies -- by which we mean a record of the formation time and metallicities of the stars that are present in each galaxy at a given time. We use…

We constrain the mass distribution in nearby, star-forming galaxies with the Star Formation Reference Survey (SFRS), a galaxy sample constructed to be representative of all known combinations of star formation rate (SFR), dust temperature,…

We investigate the evolution of the galaxy Star Formation Rate Function (SFRF) and Cosmic Star Formation Rate Density (CSFRD) of $z\sim 1-4 $ galaxies, using cosmological Smoothed Particle Hydrodynamic (SPH) simulations and a compilation of…

Astrophysics of Galaxies · Physics 2016-12-07 Antonios Katsianis , Edoardo Tescari , Guillermo Blanc , Mark Sargent

We examine the connection between the observed star-forming sequence (SFR $\propto$ $M^{\alpha}$) and the observed evolution of the stellar mass function between $0.2 < z < 2.5$. We find the star-forming sequence cannot have a slope…

Astrophysics of Galaxies · Physics 2015-06-22 Joel Leja , Pieter van Dokkum , Marijn Franx , Katherine E. Whitaker

We examine what types of galaxies the conversion formula from dust infrared (IR) luminosity into the star formation rate (SFR) derived by Kennicutt (1998) is applicable to. The ratio of the observed IR luminosity, $L_{\rm IR}$, to the…

Astrophysics · Physics 2016-08-30 Akio K. Inoue

Whilst the star formation rate (SFR) of molecular clouds and galaxies is key in understanding galaxy evolution, the physical processes which determine the SFR remain unclear. This uncertainty about the underlying physics has resulted in…

Astrophysics of Galaxies · Physics 2015-05-14 Diane M. Salim , Christoph Federrath , Lisa J. Kewley

We develop an empirical approach to infer the star formation rate in dark matter halos from the galaxy stellar mass function (SMF) at different redshifts and the local cluster galaxy luminosity function (CGLF), which has a steeper faint end…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Zhankui Lu , Houjun Mo , Yu Lu , Neal Katz , Martin D. Weinberg , Frank C. van den Bosch , Xiaohu Yang