The dark matter distribution in high redshift clusters: probing evolution. LP

Details The dark matter distribution in high redshift clusters: probing evolution. LP The dark matter distribution in high redshift clusters: probing evolution. LP

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop...51a&link_type=abstract

XMM-Newton Proposal ID #06515701

Physics

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Rx J0257.1-2325

Scientific paper

We have been awarded a Large Program in AO7 (373 ksec) to assess the evolution of the dark matter concentration at cluster scales, a critical test of theoretical scenario of structure formation. To do this, we measure the mass profiles of a sample of massive, relaxed galaxy clusters at z greater than 0.5, with a precision equal to that currently obtained for local objects. WITH THIS PROPOSAL, IN THE RESUBMITTED LARGE PROGRAM CATEGORY, we propose to re-observe RX J0257.1-2325, the observation of which was dramatically affected by flares. In the GO category, we propose to observe the 2 targets for which no time was allocated in AO7, to reach the original precision goal of our project. The scientific justification is common to both proposals

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