XMM observation of the dynamically young galaxy cluster CL 0939+4713
Astrophysics
2008-11-26 v1
Abstract
We present an XMM observation of the distant galaxy cluster CL 0939+4713. The X-ray image shows pronounced substructure, with two main subclusters forming the cluster core. This is an indication that the cluster is a dynamically young system. This conclusion is supported by the temperature distribution: a hot region is found between the two main subclusters indicating that they are at the beginning of a major merger, and that they will collide in a few hundreds of Myr. The intra-cluster gas of CL 0939+4713 shows inhomogeneities in the metal distribution, with the optically richer subcluster having a higher metallicity.
Cite
@article{arxiv.astro-ph/0304027,
title = {XMM observation of the dynamically young galaxy cluster CL 0939+4713},
author = {E. De Filippis and S. Schindler and A. Castillo-Morales},
journal= {arXiv preprint arXiv:astro-ph/0304027},
year = {2008}
}
Comments
14 pages, 10 figures, A&A in press