An X-ray - lensing calibration of cluster mass estimates

Details An X-ray - lensing calibration of cluster mass estimates An X-ray - lensing calibration of cluster mass estimates

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop...87m&link_type=abstract

XMM-Newton Proposal ID #04022504

Mathematics

Logic

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, A1576, Z7215, Z5768, Z2089, Xmm-Newton Proposal 04022504

Scientific paper

We have compiled the largest statistically complete sample of galaxy clusters with weak lensing mass estimates. 32 of the 36 clusters have already been observed with XMM-Newton and/or Chandra. With 47ks of XMM-Newton observations, good quality X-ray data can be obtained for the remaining 4, creating a complete X-ray/lensing dataset. For the first time, X-ray and weak lensing mass estimates will be cross-calibrated in a volume limited sample. This will allow: 1) the measurement of systematic effects in cluster mass estimates and their effect on derived cosmological constraints; 2) improved calibration of the X-ray observable - mass scaling relations; and 3) accurate measurements of cluster baryon fractions.

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