Herschel PEP/HerMES: the redshift evolution (0 ≤ z ≤ 4) of dust attenuation and of the total (UV+IR) star formation rate density

D. Burgarella 1, * V. Buat 1 C. Gruppioni 2 O. Cucciati 2 S. Heinis 1 S. Berta M. Béthermin 3 J. Bock A. Cooray J. S. Dunlop D. Farrah A. Franceschini E. Le Floc’h 3 D. Lutz B. Magnelli R. Nordon S. J. Oliver M. J. Page P. Popesso F. Pozzi L. Riguccini 3 M. Vaccari M. Viero
* Corresponding author
1 LAM - Laboratoire d'Astrophysique de Marseille
2 OABO - INAF - Osservatorio Astronomico di Bologna
3 AIM - UMR 7158 - UMR E 9005 - Astrophysique Interprétation Modélisation
Abstract : Using new homogeneous luminosity functions (LFs) in the far-ultraviolet (FUV) from VVDS and in the far-infrared (FIR) from Herschel/PEP and Herschel/HerMES, we studied the evolution of the dust attenuation with redshift. With this information, we were able to estimate the redshift evolution of the total (FUV + FIR) star formation rate density (SFRDTOT). By integrating SFRDTOT, we followed the mass building and analyzed the redshift evolution of the stellar mass density (SMD). This article aims at providing a complete view of star formation from the local Universe to z ~ 4 and, using assumptions on earlier star formation history, compares this evolution with previously published data in an attempt to draw a homogeneous picture of the global evolution of star formation in galaxies. Our main conclusions are that: 1) the dust attenuation AFUV is found to increase from z = 0 to z ~ 1.2 and then starts to decrease until our last data point at z = 3.6; 2) the estimated SFRD confirms published results to z ~ 2. At z > 2, we observe either a plateau or a small increase up to z ~ 3 and then a likely decrease up to z = 3.6; 3) the peak of AFUV is delayed with respect to the plateau of SFRDTOT and a probable origin might be found in the evolution of the bright ends of the FUV and FIR LFs; 4) using assumptions (exponential rise and linear rise with time) for the evolution of the star formation density from z = 3.6 to zform = 10, we integrated SFRDTOT and obtained a good agreement with the published SMDs.
Keywords : cosmology: observations galaxies: star formation infrared: galaxies early Universe galaxies: starburst ultraviolet: galaxies
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D. Burgarella, V. Buat, C. Gruppioni, O. Cucciati, S. Heinis, et al.. Herschel PEP/HerMES: the redshift evolution (0 ≤ z ≤ 4) of dust attenuation and of the total (UV+IR) star formation rate density. Astronomy and Astrophysics - A&A, EDP Sciences, 2013, 554, pp.A70. ⟨10.1051/0004-6361/201321651⟩. ⟨cea-01135396⟩

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