Stellar populations in the z ˜ 0.64 cluster CL 0048-2942

Details Stellar populations in the z ˜ 0.64 cluster CL 0048-2942 Stellar populations in the z ˜ 0.64 cluster CL 0048-2942

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..721s&link_type=abstract

SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret

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Scientific paper

CL 0048-2942 was detected in the optical at intermediate redshift (z = 0.64) and followed up with BVRI deep imaging and VLT spectroscopy. These data allowed us to perform a combined study of the system, placed at an important epoch for structure formation: the assembly of rich galaxy clusters. This consisted, among other studies, in performing a stellar population synthesis analysis of member galaxies, in particular to ascertain the percentage and radial distribution of K+A galaxies, which are rather frequent in clusters at similar redshifts. We have found some population gradients within the cluster as well as differences in stellar populations between cluster and field galaxies observed at the same time and used as a comparison sample.

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