Measuring the Physical Properties of the Most Distant X-Ray Massive Galaxy Cluster at z=1.4

Details Measuring the Physical Properties of the Most Distant X-Ray Massive Galaxy Cluster at z=1.4 Measuring the Physical Properties of the Most Distant X-Ray Massive Galaxy Cluster at z=1.4

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2035m&link_type=abstract

Chandra Proposal ID #07800936

Mathematics

Logic

Chandra Proposal Id #07800936

Scientific paper

We propose joint Chandra/XMM observations to measure the fundamental properties of XMMUJ2235.3-2557 (z=1.4), the most distant massive galaxy cluster known. Based on its high Lx, ICM temperature and optical/NIR richness, it is very likely the most massive z>1 structure yet identified. The cluster provides a compelling opportunity to extend the baseline of evolutionary studies to the largest look-back time currently accessible, and yields very strong leverage for testing cluster formation scenarios and for deriving cosmological constraints. Chandra's resolution is crucial to measure structural parameters free from point source confusion and to establish the cluster's dynamical state. XMM's high sensitivity is necessary to derive accurate measures of ICM temperature, metallicity and mass.

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