2006A&A...459..745F


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.22CEST04:34:08

2006A&A...459..745F - Astronomy and Astrophysics, volume 459, 745-757 (2006/12-1)

The Galaxy mass function up to z=4 in the GOODS-MUSIC sample: into the epoch of formation of massive galaxies.

FONTANA A., SALIMBENI S., GRAZIAN A., GIALLONGO E., PENTERICCI L., NONINO M., FONTANOT F., MENCI N., MONACO P., CRISTIANI S., VANZELLA E., DE SANTIS C. and GALLOZZI S.

Abstract (from CDS):

The goal of this work is to measure the evolution of the Galaxy Stellar Mass Function and of the resulting Stellar Mass Density up to redshift ≃4, in order to study the assembly of massive galaxies in the high redshift Universe. We have used the GOODS-MUSIC catalog, containing ∼3000 Ks-selected galaxies with multi-wavelength coverage extending from the U band to the Spitzer 8 µm band, of which 27% have spectroscopic redshifts and the remaining fraction have accurate photometric redshifts. On this sample we have applied a standard fitting procedure to measure stellar masses. We compute the Galaxy Stellar Mass Function and the resulting Stellar Mass Density up to redshift ≃4, taking into proper account the biases and incompleteness effects. Within the well known trend of global decline of the Stellar Mass Density with redshift, we show that the decline of the more massive galaxies may be described by an exponential timescale of ≃6Gyr up to z≃1.5, and proceeds much faster thereafter, with an exponential timescale of ≃0.6Gyr. We also show that there is some evidence for a differential evolution of the Galaxy Stellar Mass Function, with low mass galaxies evolving faster than more massive ones up to z≃1-1.5 and that the Galaxy Stellar Mass Function remains remarkably flat (i.e. with a slope close to the local one) up to z≃1-1.3. The observed behaviour of the Galaxy Stellar Mass Function is consistent with a scenario where about 50% of present-day massive galaxies formed at a vigorous rate in the epoch between redshift 4 and 1.5, followed by a milder evolution until the present-day epoch.

Abstract Copyright:

Journal keyword(s): galaxies: distances and redshift - galaxies: evolution - galaxies: high-redshift - galaxies: fundamental parameters - galaxies: luminosity fuction, mass function

CDS comments: Fig.11 Galaxies not in Simbad.

Simbad objects: 3

goto Full paper

goto View the reference in ADS

Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 996 1
2 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 1750 1
3 NAME HDF-S reg 22 32 56 -60 33.0           ~ 534 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2006A&A...459..745F and select 'bookmark this link' or equivalent in the popup menu


2019.10.22-04:34:08

© Université de Strasbourg/CNRS

    • Contact