XMM-Newton Proposal 03001402

Details XMM-Newton Proposal 03001402 XMM-Newton Proposal 03001402

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop....4j&link_type=abstract

XMM-Newton Proposal ID #03001402

Mathematics

Logic

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Cl1429.0+4241, Cl2038.4-0125, Xmm-Newton Proposal 03001402

Scientific paper

Under very general theoretical assumptions, the evolution of the space density of clusters of galaxies is extremely sensitive to cosmological parameters. The most straightforward method of exploiting this sensitivity is through measurements of the X-ray temperature function. We propose to measure the temperatures and structure of a complete sample of clusters with a mean redshift of z=0.8. We will determine the density parameter to an accuracy better than 10 per cent, including accounting for the high degree of substructure suspected in a large fraction of the clusters. If confirmed, this substructure would indicate that we are starting to observe the epoch of massive cluster formation.

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