Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-14T08:30:11.274Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Baldwin, J. A., Phillips, M. M., & Terlevich, R. 1981, PASP, 93, 5Google Scholar
Cid Fernandes, R. et al. 2005, MNRAS, 358, 363Google Scholar
Cid Fernandes, R. et al. 2009, RMxAC, 35, 127Google Scholar
Egami, E. et al. 2006b ApJ, 647, 922Google Scholar
Maughan, B. J., Jones, C., Forman, W., & Van Speybroeck, L. 2003, ApJ, 174, 117Google Scholar
Popesso, P. et al. , 2004 A&A, 423, 449Google Scholar
Reiprich, T. H. & Böhringer, H. 2002, ApJ, 567, 716Google Scholar
Sánchez-Blázquez, P. et al. 2006, MNRAS, 371, 703Google Scholar