2008MNRAS.385..979A


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.29CET01:13:05

2008MNRAS.385..979A - Mon. Not. R. Astron. Soc., 385, 979-985 (2008/April-1)

Galaxy evolution in the high-redshift, colour-selected cluster RzCS 052 at z = 1.02.

ANDREON S., PUDDU E., DE PROPRIS R. and CUILLANDRE J.-C.

Abstract (from CDS):

We present deep I and z' imaging of the colour-selected cluster RzCS 052 and study the colour-magnitude relation of this cluster, its scatter, the morphological distribution on the red sequence, the luminosity and stellar mass functions of red galaxies and the cluster blue fraction. We find that the stellar populations of early-type galaxies in this cluster are uniformly old and that their luminosity function does not show any sign of evolution other than the passive evolution of their stellar populations. We rule out a significant contribution from mergers in the build-up of the red sequence of RzCS 052. The cluster has a large (∼30 per cent) blue fraction and we infer that the evolution of the blue galaxies is faster than an exponentially declining star formation model and that these objects have probably experienced starburst episodes. Mergers are unlikely to be the driver of the observed colour evolution, because of the measured constancy of the mass function, as derived from near-infrared photometry of 32 clusters, including RzCS 052, presented in a related paper. Mechanisms with clustercentric radial dependent efficiencies are disfavoured as well, because of the observed constant blue fraction with clustercentric distance.

Abstract Copyright: 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: RzCS 052 - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: formation - galaxies: luminosity function, mass function

Status at CDS:  

Simbad objects: 29

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Number of rows : 29

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 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 778 0
2 ACO 175 ClG 01 19 37.7 +14 53 35           ~ 37 0
3 [ADP2008] J022136.21-032456.0 GiC 02 21 36.21 -03 24 56.0           ~ 2 0
4 [ADP2008] J022137.08-032428.4 GiC 02 21 37.08 -03 24 28.4           ~ 2 0
5 [ADP2008] J022137.60-032138.0 GiC 02 21 37.60 -03 21 38.0           ~ 2 0
6 [ADP2008] J022138.85-032340.7 GiC 02 21 38.85 -03 23 40.7           ~ 2 0
7 [ADP2008] J022139.60-032200.9 GiC 02 21 39.60 -03 22 00.9           ~ 2 0
8 [ADP2008] J022140.32-031903.4 GiC 02 21 40.32 -03 19 03.4           ~ 2 0
9 [ADP2008] J022140.46-031835.6 GiC 02 21 40.46 -03 18 35.6           ~ 2 0
10 [ADP2008] J022141.13-032441.2 GiC 02 21 41.13 -03 24 41.2           ~ 2 0
11 [ADP2008] J022141.73-032335.2 GiC 02 21 41.73 -03 23 35.2           ~ 2 0
12 RCS J022144-0321.7 ClG 02 21 42.0 -03 21 47           ~ 15 0
13 [ADP2008] J022142.04-032154.1 GiC 02 21 42.04 -03 21 54.1           ~ 2 0
14 [ADP2008] J022142.14-032007.0 GiC 02 21 42.14 -03 20 07.0           ~ 2 0
15 [ADP2008] J022142.52-032243.6 GiC 02 21 42.52 -03 22 43.6           ~ 2 0
16 [ADP2008] J022142.81-032248.8 GiC 02 21 42.81 -03 22 48.8           ~ 2 0
17 [ADP2008] J022143.15-032115.2 GiC 02 21 43.15 -03 21 15.2           ~ 2 0
18 [ADP2008] J022143.87-032106.0 GiC 02 21 43.87 -03 21 06.0           ~ 2 0
19 [ADP2008] J022143.96-032027.9 GiC 02 21 43.96 -03 20 27.9           ~ 2 0
20 [ADP2008] J022144.85-032204.3 GiC 02 21 44.85 -03 22 04.3           ~ 2 0
21 [ADP2008] J022144.90-032144.5 GiC 02 21 44.90 -03 21 44.5           ~ 2 0
22 [ADP2008] J022145.21-032125.5 GiC 02 21 45.21 -03 21 25.5           ~ 2 0
23 [ADP2008] J022145.24-032044.3 GiC 02 21 45.24 -03 20 44.3           ~ 2 0
24 [ADP2008] J022148.33-032048.6 GiC 02 21 48.33 -03 20 48.6           ~ 2 0
25 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 655 2
26 ClG J0910+5422 ClG 09 10 44.9 +54 22 09           ~ 85 0
27 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 448 0
28 ACO 1185 ClG 11 10 31.4 +28 43 39           ~ 242 1
29 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4162 2

    Equat.    Gal    SGal    Ecl

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2020.03.29-01:13:05

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