Beyond the virial radius of the X-ray brightest cluster

Details Beyond the virial radius of the X-ray brightest cluster Beyond the virial radius of the X-ray brightest cluster

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop..109s&link_type=abstract

XMM-Newton Proposal ID #06727701

Physics

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Perseus East_Vi

Scientific paper

We propose a 10 ks snapshot of the Eastern edge of the Perseus Cluster, along a large-scale structure filament seen in the galaxy distribution. This is the only region so far where we have detected emission from beyond the virial radius of this cluster with Suzaku, but the systematic uncertainty due to the underlying point source flux is much larger than the statistical error of the measurement. This observation will allow us to detect point sources an order of magnitude fainter than with Suzaku and thus decrease this systematic uncertainty by a factor of 3-4. XMM-Newton will therefore play an important role in confirming this detection beyond the virial radius, and give us important insight into the physics at the edge between galaxy clusters and large-scale structure filaments.

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