XMM-Newton Proposal 02053705

Details XMM-Newton Proposal 02053705 XMM-Newton Proposal 02053705

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..284j&link_type=abstract

XMM-Newton Proposal ID #02053705

Mathematics

Logic

Cl1103.6+3555, Cl1115.8+4239, Xmm-Newton Proposal 02053705

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 z0.8. 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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