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SUMMARY:A consistent view on normal star-forming galaxies from z~2 to 8 fr
 om multi-wavelength observations and SED modelling - Daniel Schaerer (Univ
 ersité de Genevé\, Switzerland)
DTSTART:20150519T130000Z
DTEND:20150519T140000Z
UID:TALK59216@talks.cam.ac.uk
CONTACT:David Titterington
DESCRIPTION:   We present new results from a multi-wavelength analysis of 
 normal/typical star-forming (SF) galaxies combining a sample of strongly l
 ensed galaxies at z~1.5-4 and z~6-7\, a large sample of LBGs from z~3-8\, 
 \nand a Herschel-selected sample at z~1.5-3.  The observations include dee
 p ground-based\, HST\, Spitzer\, and Herschel imaging\, plus LABOCA/SCUBA2
  data\, IRAM and ALMA dust continuum observations for some of the objects.
 \n   The observed SEDs are modelled with our SED fitting tool including ne
 bular emission for the stellar part\, and allowing for energy-conserving g
 lobal SED fits including also dust emission.\n   We obtain direct constrai
 nts on dust attenuation from IR and UV measurements\, yielding new informa
 tion on the dependence of attenuation on galaxy mass and on its redshift e
 volution.  Both the empirical data and our modelling shows that the UV att
 enuation at z>3 may be larger than commonly thought\, with implications on
  the global history of star formation (SFR density) at high redshift.\n   
 We also present evidence for variable star formation histories in high-z g
 alaxies and discuss important implications on the specific SFT\, its redsh
 ift evolution\, the SF main sequence at high redshift\, and other related 
 issues.\n
LOCATION:**Sackler Lecture Theare\, Institute of Astronomy**
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