Galaxy stellar mass assembly between 0.2 < z < 2 from the S-COSMOS survey

Details Galaxy stellar mass assembly between 0.2 < z < 2 from the S-COSMOS survey Galaxy stellar mass assembly between 0.2 < z < 2 from the S-COSMOS survey

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sf2a.conf..355i&link_type=abstract

SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: S. Boissier, M. Heydari-

Astronomy and Astrophysics

Astrophysics

Galaxies: Luminosity Function And Mass Function, Galaxies: Evolution, Galaxies: Formation

Scientific paper

We follow the galaxy stellar mass assembly by morphological and spectral type in the COSMOS 2-deg^2 field. We derive the stellar mass functions from z=2 to z=0.2 using 196,000 galaxies selected at F3.6μ m> 1 μ Jy with accurate photometric redshifts (σ(z_{phot-zspec)/(1+zspec)}=0.008 at i^+<22.5). First, we find that the massive galaxies with the highest SSFR end their star formation phase first, following a downsizing pattern. Secondly, the mass function of the overall star-forming population doesn't evolve significantly at z<1. Then, we find that the density of massive quiescent galaxies increases rapidly between z=2 and z=1 and this evolution slows down significantly after z<1. The density of quiescent galaxies increases at low/intermediate masses. Adding the morphological information, we find that elliptical galaxies represents 80-90% of the massive quiescent galaxies at z<0.8. Still, a significant fraction of quiescent galaxies present a Spi/Irr morphology at low mass (40-60% at log(M)˜ 9.5). We find a population of blue elliptical galaxies which are mostly low mass galaxies at z<1. This analysis is detailed in Ilbert et al. (2010).

Affiliated with

Also associated with

No associations

Rating

Galaxy stellar mass assembly between 0.2 < z < 2 from the S-COSMOS survey does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Galaxy stellar mass assembly between 0.2 < z < 2 from the S-COSMOS survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galaxy stellar mass assembly between 0.2 < z < 2 from the S-COSMOS survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1311482