2009A&A...508..665B


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET20:26:06

2009A&A...508..665B - Astronomy and Astrophysics, volume 508, 665-675 (2009/12-3)

Relating basic properties of bright early-type dwarf galaxies to their location in Abell 901/902.

BARAZZA F.D., WOLF C., GRAY M.E., JOGEE S., BALOGH M., McINTOSH D.H., BACON D., BARDEN M., BELL E.F., BOEHM A., CALDWELL J.A.R., HAEUSSLER B., HEIDERMAN A., HEYMANS C., JAHNKE K., VAN KAMPEN E., LANE K., MARINOVA I., MEISENHEIMER K., PENG C.Y., SANCHEZ S.F., TAYLOR A., WISOTZKI L. and ZHENG X.

Abstract (from CDS):

We present a study of the population of bright early-type dwarf galaxies in the multiple-cluster system Abell 901/902. We use data from the STAGES survey and COMBO-17 to investigate the relation between the color and structural properties of the dwarfs and their location in the cluster. The definition of the dwarf sample is based on the central surface brightness and includes galaxies in the luminosity range -16≥MB>-19mag. Using a fit to the color magnitude relation of the dwarfs, our sample is divided into a red and blue subsample. We find a color-density relation in the projected radial distribution of the dwarf sample: at the same luminosity dwarfs with redder colors are located closer to the cluster centers than their bluer counterparts. Furthermore, the redder dwarfs are on average more compact and rounder than the bluer dwarfs. These findings are consistent with theoretical expectations assuming that bright early-type dwarfs are the remnants of transformed late-type disk galaxies involving processes such as ram pressure stripping and galaxy harassment. This indicates that a considerable fraction of dwarf elliptical galaxies in clusters are the results of transformation processes related to interactions with their host cluster.

Abstract Copyright:

Journal keyword(s): galaxies: dwarf - galaxies: formation - galaxies: evolution - galaxies: clusters: individual: Abell 901/902 - galaxies: structure

Simbad objects: 9

goto Full paper

goto View the reference in ADS

Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME ACO 901-902 SW Group ClG 09 55 38.4 -10 10 18           ~ 16 1
2 ACO 901 ClG 09 55 56.9256 -10 01 46.519           ~ 101 1
3 NAME ACO 901B ClG 09 55 57.4 -09 59 03           ~ 19 0
4 NAME ACO 901-902 Supercluster SCG 09 56 -10.0           ~ 118 1
5 NAME ACO 901A ClG 09 56 26.4 -09 57 22           ~ 23 0
6 ACO 902 ClG 09 56 33.600 -10 09 13.10           ~ 58 1
7 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5986 0
8 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4319 2
9 NAME Local Group GrG ~ ~           ~ 7187 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2009A&A...508..665B and select 'bookmark this link' or equivalent in the popup menu


2021.03.04-20:26:06

© Université de Strasbourg/CNRS

    • Contact