A deep radio view of the evolution of the cosmic star-formation rate density from a stellar-mass selected sample in VLA-COSMOS

Abstract

We present the 1.4GHz radio luminosity functions (RLFs) of galaxies in the COSMOS field, measured above and below the $5\sigma$ detection threshold, using a Bayesian model-fitting technique. The radio flux-densities from VLA-COSMOS 3-GHz data, are extracted at the position of stellar mass-limited near-infrared (NIR) galaxies. We fit a local RLF model, which is a combination of active galactic nuclei (AGN) and star-forming galaxy (SFG), in 10 redshift bins with a pure luminosity evolution (PLE) model. We show that the evolution strength is similar to literature values up to $z\sim 1.6$. Beyond $z\sim 2$, we find that the SFG RLF exhibits a negative evolution ($L^{\ast }$ moves to lower luminosities) due to the decrease in low stellar-mass sources in our stellar mass-limited sample at high redshifts. From the RLF for SFGs, we determine the evolution in the cosmic star-formation-rate density (SFRD), which we find to be consistent with the established behaviour up to $z\sim 1$. Beyond $z\sim 1$ cosmic SFRD declines if one assumes an evolving infrared--radio correlation (IRRC), whereas it stays relatively higher if one adopts a constant IRRC. We find that the form of the relation between radio luminosity and SFR is therefore crucial in measuring the cosmic SFRD from radio data. We investigate the effects of stellar mass on the total RLF by splitting our sample into low ($10^{8.5}\le M/{\mathrm{M}}_{\odot }\le 10^{10}$) and high ($M>10^{10}{\mathrm{M}}_{\odot }$) stellar-mass subsets. We find that the SFRD is dominated by sources in the high stellar masses bin, at all redshifts.

28 pages, 16 figures, 6 tables

References in corpus (32)

• Cosmic Star Formation History
• The Cosmic Evolution Survey (COSMOS) -- Overview
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• Detection of quiescent galaxies in a bicolor sequence from z=0-2
• Constraining the Low-Mass Slope of the Star Formation Sequence at 0.5<z<2.5
• UltraVISTA: a new ultra-deep near-infrared survey in COSMOS
• What do we learn from IRAC observations of galaxies at 2 < z < 3.5?
• Radio sources in the 6dFGS: Local luminosity functions at 1.4 GHz for star-forming galaxies and radio-loud AGN
• The SCUBA-2 Cosmology Legacy Survey: 850um maps, catalogues and number counts
• A lack of evolution in the very bright-end of the galaxy luminosity function from z = 8-10
• Star Formation at $4<z<6$ From the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH)
• LOFAR/H-ATLAS: The low-frequency radio luminosity - star-formation rate relation
• The VLA-COSMOS 3~GHz Large Project: Cosmic evolution of radio AGN and implications for radio-mode feedback since z~5
• The infrared-radio correlation of star-forming galaxies is strongly M${}_{\star }$-dependent but nearly redshift-invariant since z$\sim$4
• X-rays across the galaxy population I: tracing the main sequence of star formation
• An ALMA survey of submillimeter galaxies in the COSMOS field: Multiwavelength counterparts and redshift distribution
• The dust un-biased cosmic star formation history from the 20 cm VLA-COSMOS survey
• Beyond UVJ: More Efficient Selection of Quiescent Galaxies With UV / Mid-IR Fluxes
• Chasing passive galaxies in the early Universe: a critical analysis in CANDELS GOODS-South
• The MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey
• On the Gas Content, Star Formation Efficiency, and Environmental Quenching of Massive Galaxies in Proto-Clusters at z~2.0-2.5
• The temperature dependence of the far-infrared-radio correlation in the Herschel-ATLAS
• The infrared-radio correlation of spheroid- and disc-dominated star-forming galaxies to z $\sim$ 1.5 in the COSMOS field
• Evolution of the galaxy stellar mass function: evidence for an increasing $M^{\ast }$ from $z=2$ to the present day
• Radio continuum size evolution of star-forming galaxies over 0.35 < z < 2.25
• Radio Source Extraction with ProFound
• The eMERGE Survey I: Very Large Array 5.5 GHz observations of the GOODS-North Field
• Cosmic evolution of star-forming galaxies to $z\simeq 1.8$ in the faint low-frequency radio source population
• X-Ray Emission from Star-Forming Galaxies - Signatures of Cosmic Rays and Magnetic Fields

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