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29 March 2024
 
  » arxiv » astro-ph/0107504

 Article overview


Discovery of depressions in the X-ray emission of the distant galaxy cluster RBS797 in a CHANDRA observation
S. Schindler ; A. Castillo-Morales ; E. De Filippis ; A. Schwope ; J. Wambsganss ;
Date 26 Jul 2001
Subject astro-ph
AffiliationLiverpool JMU), A. Castillo-Morales (Liverpool JMU), E. De Filippis (Liverpool JMU), A. Schwope (Astrophysikalisches Institut Potsdam), J. Wambsganss (Univ. Potsdam
AbstractWe present CHANDRA observations of the X-ray luminous, distant galaxy cluster RBS797 at z=0.35. In the central region the X-ray emission shows two pronounced X-ray minima, which are located opposite to each other with respect to the cluster centre. These depressions suggest an interaction between the central radio galaxy and the intra-cluster medium, which would be the first detection in such a distant cluster. The minima are symmetric relative to the cluster centre and very deep compared to similar features found in a few other nearby clusters. A spectral and morphological analysis of the overall cluster emission shows that RBS797 is a hot cluster (T=7.7^{+1.2}_{-1.0} keV) with a total mass of M_{tot}(r_{500})=6.5^{+1.6}_{-1.2} 10^{14} msol.
Source arXiv, astro-ph/0107504
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