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Stellar formation in Brightest Cluster Galaxies

Published online by Cambridge University Press:  13 April 2010

Tatiana Zapata Pichinao  and
Gastão B. Lima Neto
Tatiana Zapata Pichinao
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, IAG/USP, Brazil email: taz@astro.iag.usp.br - gastao@astro.iag.usp.br
Gastão B. Lima Neto
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, IAG/USP, Brazil email: taz@astro.iag.usp.br - gastao@astro.iag.usp.br
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Abstract

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We study the interplay between stellar population of the Brightest Cluster Galaxies (BCG) and cluster global properties. We use X-ray properties from Chandra, ROSAT and ASCA observations and BCGs spectra from SDSS-DR6. Using STARLIGHT we determined the star formation history of the BCGs and look for relations with the intra-cluster gas properties. Our first results show no correlation between the recent star formation with x-ray temperature and dynamic state. An important star formation is happening in cool-core Cluster. This new stellar population has low metallicity, pointing to an external source of cold gas to form stars.

Keywords

Galaxies: BCGsspectral synthesis - Galaxy Clusters: cooling flow
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S262: Stellar Populations – Planning for the Next Decade , August 2009 , pp. 450 - 451
Copyright
Copyright © International Astronomical Union 2010

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