XMM-Newton Proposal 02003401

Details XMM-Newton Proposal 02003401 XMM-Newton Proposal 02003401

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop...16m&link_type=abstract

XMM-Newton Proposal ID #02003401

Mathematics

Logic

Clj1226.9+3332, Xmm-Newton Proposal 02003401

Scientific paper

We propose an 84ks observation of the massive galaxy cluster ClJ1226.9+3332 at z0.89 to detect its emission out to the virial radius (Rv). This cluster is the hottest known at z>0.6 (kT11.5keV), is highly luminous, and uniquely, appears relaxed. The proposed observation uses the sensitivity of XMM to trace the emission out to Rv, construct a detailed temperature profile, and map surface brightness and temperature variations on small and large scales. Combined with our existing high-quality multi-wavelength data, this will allow us to measure the cluster's properties (eg total mass, gas-mass fraction) with an unprecedented degree of accuracy. These measurements will enable new cosmological constraints to be placed, and provide the benchmark for comparisons with other high-z clusters.

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