2016A&A...593A...9C


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.04CEST13:32:22

2016A&A...593A...9C - Astronomy and Astrophysics, volume 593A, 9-9 (2016/9-1)

Effect of the star formation histories on the SFR-M* relation at z ≥ 2.

CASSARA L.P., MACCAGNI D., GARILLI B., SCODEGGIO M., THOMAS R., LE FEVRE O., ZAMORANI G., SCHAERER D., LEMAUX B.C., CASSATA P., LE BRUN V., PENTERICCI L., TASCA L.A.M., VANZELLA E., ZUCCA E., AMORIN R., BARDELLI S., CASTELLANO M., CIMATTI A., CUCCIATI O., DURKALEC A., FONTANA A., GIAVALISCO M., GRAZIAN A., HATHI N.P., ILBERT O., PALTANI S., RIBEIRO B., SOMMARIVA V., TALIA M., TRESSE L., VERGANI D., CAPAK P., CHARLOT S., CONTINI T., DE LA TORRE S., DUNLOP J., FOTOPOULOU S., GUAITA L., KOEKEMOER A., LOPEZ-SANJUAN C., MELLIER Y., PFORR J., SALVATO M., SCOVILLE N., TANIGUCHI Y. and WANG P.W.

Abstract (from CDS):

We investigate the effect of different star formation histories (SFHs) on the relation between stellar mass (M*) and star formation rate (SFR) using a sample of galaxies with reliable spectroscopic redshift zspec>2 drawn from the VIMOS Ultra-Deep Survey (VUDS). We produce an extensive database of dusty model galaxies, calculated starting from a new library of single stellar population (SSPs) models, weighted by a set of 28 different star formation histories based on the Schmidt function, and characterized by different ratios of the gas infall timescale τinfall to the star formation efficiency ν. Dust extinction and re-emission were treated by means of the radiative transfer calculation. The spectral energy distribution (SED) fitting technique was performed by using GOSSIP+, a tool able to combine both photometric and spectroscopic information to extract the best value of the physical quantities of interest, and to consider the intergalactic medium (IGM) attenuation as a free parameter. We find that the main contribution to the scatter observed in the SFR-M* plane is the possibility of choosing between different families of SFHs in the SED fitting procedure, while the redshift range plays a minor role. The majority of the galaxies, at all cosmic times, are best fit by models with SFHs characterized by a high τ_infall/ν ratio. We discuss the reliability of a low percentage of dusty and highly star-forming galaxies in the context of their detection in the far infrared (FIR).

Abstract Copyright: © ESO, 2016

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: high-redshift - galaxies: star formation

Status at CDS:  

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9392 1
2 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 609 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14760 1
4 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2042 0

    Equat.    Gal    SGal    Ecl

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2020.06.04-13:32:22

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