The VIMOS VLT Deep Survey: Star Formation Since z≃q5 and Mass Assembly from the VVDS-SWIRE Sample

Details The VIMOS VLT Deep Survey: Star Formation Since z≃q5 and Mass Assembly from the VVDS-SWIRE Sample The VIMOS VLT Deep Survey: Star Formation Since z≃q5 and Mass Assembly from the VVDS-SWIRE Sample

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..380..303l&link_type=abstract

At the Edge of the Universe: Latest Results from the Deepest Astronomical Surveys ASP Conference Series, Vol. 380, proceedings o

Astronomy and Astrophysics

Astronomy

Scientific paper

The VIMOS VLT Deep Survey is enabling to trace from one single survey the star formation history in the Universe over 12 billion years of evolution. We find that the star formation rate is strongly linked to the different types of galaxies. While the Luminosity Density of irregular-like galaxies decreased by more than a factor 3.5 from z=1.2 to z=0.2, the LD for early-type galaxies increased by a factor 1.7. Star formation happened in several phases, strongly luminosity dependent, with star formation gradually shifting from the first massive galaxies to less massive systems. The peak in SFR at z=3.5 is identified with the end of the mass assembly of the most luminous galaxies (MAB(1500Å)<-21). We use the SWIRE Spitzer-IRAC observations of the VVDS-02h field to assemble a flux-limited sample at 3.8μm of 1500 galaxies with spectroscopic redshifts and more than 22000 galaxies with photometric redshifts up to z=2 and build the rest-frame K-band luminosity function and stellar mass density. We find that the global stellar mass density has remained relatively constant since z˜1, but the epoch 1

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