Cold Fronts in Hot Clusters

Details Cold Fronts in Hot Clusters Cold Fronts in Hot Clusters

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop...17i&link_type=abstract

XMM-Newton Proposal ID #05006702

Computer Science

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Rxj1720.1+2638, Xmm-Newton Proposal 05006702

Scientific paper

The existence of cold fronts in galaxy clusters is an intriguing but currently unexplained phenomenon. In some instances, the observational evidence supports the idea that the cold core is the remnant of a subcluster merger with the main cluster. However, this seems unlikely in cases where the cluster contains multiple cold fronts or looks very relaxed, in which case the oscillation of the cluster core in its potential well might better explain the cold front. These competing scenarios can be discriminated through a search for temperature and chemical signatures across the cold front. We propose exposures of two hot clusters; Ophiuchus (second brightest X-ray cluster) and RXJ1720.1+2638, which are natural testbeds for testing and clarifying competing cold front models.

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