2013A&A...550A..58V


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST00:24:46

2013A&A...550A..58V - Astronomy and Astrophysics, volume 550A, 58-58 (2013/2-1)

The galaxy stellar mass function and its evolution with time show no dependence on global environment.

VULCANI B., POGGIANTI B.M., OEMLER A.Jr, DRESSLER A., ARAGON-SALAMANCA A., DE LUCIA G., MORETTI A., GLADDERS M., ABRAMSON L. and HALLIDAY C.

Abstract (from CDS):

We present an analysis of the galaxy stellar mass function in different environments at intermediate redshift (0.3≤z≤0.8) for two mass-limited galaxy samples. We use the IMACS Cluster Building Survey (ICBS; M*≥1010.5M) to study cluster, group and field galaxies at z=0.3-0.45, and the ESO Distant Cluster Survey (EDisCS; M*≥1010.2M) to investigate cluster and group galaxies at z=0.4-0.8. Our analysis thus includes galaxies with masses reaching just below that of the Milky Way. Excluding the brightest cluster galaxies, we show that the shape of the mass distribution does not seem to depend on global environment, Our two main results are: (1) Galaxies in the virialised regions of clusters, in groups, and in the field follow similar mass distributions. (2) Comparing the ICBS and EDisCS mass functions to mass functions in the local universe, we detect evolution from z∼0.4-0.6 to z∼0.07 in the sense that the population of low-mass galaxies has grown with time with respect to the population of massive galaxies. This evolution is independent of environment, i.e., the same for clusters and the field. Furthermore, considering only cluster galaxies, we find that no differences can be detected in their mass functions either within the virialised regions, or when we compare galaxies inside and outside the virial radius. Finally, we find that red and blue galaxies have different mass functions. However, the shapes of the mass functions of blue and red galaxies do not seem to depend on their environment (clusters groups and the field).

Abstract Copyright:

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: clusters: general - galaxies: luminosity function, mass function

CDS comments: Table 1 Clusters not identified (incomplete format).

Simbad objects: 21

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Number of rows : 21

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2069 0
2 ClG J1018-1211 ClG 10 18 46.45 -12 11 52.8     20.35     ~ 30 0
3 ClG J1037-1243 ClG 10 37 52.6 -12 43 44           ~ 39 0
4 ClG J1040-1155 ClG 10 40 41.6 -11 55 51           ~ 55 0
5 ClG J1054-1146 ClG 10 54 24.2 -11 46 18           ~ 50 0
6 ClG J1054-1245 ClG 10 54 43.5 -12 45 50           ~ 54 0
7 ClG J1059-1253 ClG 10 59 09.5 -12 53 15           ~ 27 0
8 ClG J1103-1246 ClG 11 03 34.9 -12 46 46           ~ 20 0
9 ClG J1103-1244 ClG 11 03 36.5 -12 44 22           ~ 18 0
10 ClG J1119-1129 ClG 11 19 16.5 -11 29 33           ~ 20 0
11 ClG J1138-1133 ClG 11 38 10.3 -11 33 59           ~ 44 0
12 ClG J1202-1224 ClG 12 02 43.1 -12 24 31           ~ 26 0
13 ClG J1216-1201 ClG 12 16 45.10 -12 01 17.3           ~ 66 0
14 ClG J1227-1138 ClG 12 27 53.9 -11 38 20           ~ 45 0
15 ClG J1232-1250 ClG 12 32 30.5 -12 50 33           ~ 48 0
16 ClG J1301-1139 ClG 13 01.7 -11 39           ~ 12 0
17 ClG J1353-1137 ClG 13 53 01.0 -11 37 31           ~ 27 0
18 ClG J1354-1230 ClG 13 54 09.5 -12 30 59           ~ 45 0
19 ClG J1411-1148 ClG 14 11 03.9 -11 48 22           ~ 27 0
20 ClG J1420-1236 ClG 14 20 19.4 -12 36 36           ~ 25 0
21 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2505 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-00:24:46

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