The Cluster Mass-Temperature Relation Via Precise Weak Lensing Maps

Details The Cluster Mass-Temperature Relation Via Precise Weak Lensing Maps The Cluster Mass-Temperature Relation Via Precise Weak Lensing Maps

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..154h&link_type=abstract

XMM-Newton Proposal ID #04041207

Computer Science

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Ms 1231.3+1542, Ciza 1938.3+540, Abell 854, Abell 1246, Ms 1224.7+2007, Abell 1451, Xmm-Newton Proposal 04041207

Scientific paper

The mass-temperature relation is crucial for understanding cluster evolution and for precision cosmology using clusters of galaxies. To determine its slope, normalization, and intrinsic scatter, we propose to measure the temperature of systems in the Canadian Cluster Comparison Project. The CCCP is a CFHT wide-field weak lensing survey of 52 clusters, of which 7 have no Chandra or XMM-Newton data. With an average statistical uncertainty of 15% in mass, the CCCP surpasses the previous work in both sample size and precision. By determining the mass independently of the X-ray data, we avoid assumptions such as spherical symmetry or hydrostatic equilibrium. We will determine the normalization of the relation to 10%, and achieve the first measurement of its intrinsic scatter.

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