A Large X-ray Sample of Fossil Groups
Cosmology and Nongalactic Astrophysics
2009-10-23 v1 High Energy Astrophysical Phenomena
Abstract
We present Chandra snapshot observations of the first large X-ray sample of optically identified fossil groups. For 9 of 14 candidate groups, we are able to determine the X-ray luminosity and temperature, which span a range typical of large ellipticals to rich groups of galaxies. We discuss these initial results in the context of group IGM and central galaxy ISM evolution, and we also describe plans for a deep X-ray follow-up program.
Cite
@article{arxiv.0910.4171,
title = {A Large X-ray Sample of Fossil Groups},
author = {Eric D. Miller and Eli Rykoff and Renato de Alencar Dupke and Claudia Mendes de Oliveira and Timothy McKay and Benjamin Koester},
journal= {arXiv preprint arXiv:0910.4171},
year = {2009}
}
Comments
1 page, 2 figures. Contributed talk to Joint Discussion 8, "Hot Interstellar Matter in Elliptical Galaxies". To appear in Highlights of Astronomy, Vol. 15, Proc. of the XXVIIth IAU General Assembly, Rio de Janeiro, Brazil, August 2009, eds. D.-W. Kim and S. Pellegrini, Cambridge University Press