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The stellar mass function of galaxies to z ~ 5 in the Fors Deep and GOODS-S fields | N. Drory
; M. Salvato
; A. Gabasch
; R. Bender
; U. Hopp
; G. Feulner
; M. Pannella
; | Date: |
7 Dec 2004 | Journal: | Astrophys.J. 619 (2005) L131-L134 | Subject: | astro-ph | Affiliation: | University of Texas at Austin, Max-Planck Institut fuer Extraterrestrische Physik, Universitaets-Sternwarte Muenchen | Abstract: | We present a measurement of the evolution of the stellar mass function (MF) of galaxies and the evolution of the total stellar mass density at 010^10 Msun which are the likely progenitors of todays L* galaxies are found in much smaller numbers above z=2. However, we note that massive galaxies with M>10^11 Msun are present even to the largest redshift we probe. Beyond z=2 the evolution of the mass function becomes more rapid. We find that the total stellar mass density at z=1 is 50% of the local value. At z=2, 25% of the local mass density is assembled, and at z=3 and z=5 we find that at least 15% and 5% of the mass in stars is in place, respectively. The number density of galaxies with M>10^11 Msun evolves very similarly to the evolution at lower masses. It decreases by 0.4 dex to z=1, by 0.6 dex to z=2, and by 1 dex to z=4. | Source: | arXiv, astro-ph/0412167 | Services: | Forum | Review | PDF | Favorites |
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