Kinematics and Stellar Populations of Low-Luminosity Early-Type Galaxies in the Abell 496 Cluster Article - Septembre 2008

Igor Chilingarian, Veronique Cayatte, Florence Durret, Christophe Adami, Chantal Balkowski, L. Chemin, Tatiana Lagana, Philippe Prugniel

Igor Chilingarian, Veronique Cayatte, Florence Durret, Christophe Adami, Chantal Balkowski, L. Chemin, Tatiana Lagana, Philippe Prugniel, « Kinematics and Stellar Populations of Low-Luminosity Early-Type Galaxies in the Abell 496 Cluster  », Astronomy and Astrophysics - A&A, septembre 2008, p. 85. ISSN 0004-6361

Abstract

The morphology and stellar populations of low-luminosity early-type galaxies in clusters have until now been limited to a few relatively nearby clusters such as Virgo or Fornax. Scenarii for the formation and evolution of dwarf galaxies in clusters are therefore not well constrained. We investigate here the morphology and stellar populations of low-luminosity galaxies in the relaxed cluster Abell 496 (z=0.0330). Deep multiband imaging obtained with the CFHT Megacam allowed us to select a sample of faint galaxies (-18.8

Voir la notice complète sur HAL

Actualités