Physics
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2453s&link_type=abstract
Chandra Proposal ID #09800732
Physics
Chandra Proposal Id #09800732
Scientific paper
We propose ACIS-I observations of 15 (Lx>1E44erg/s) galaxy clusters at z=0.2 that we have recently imaged with HST. With existing data on 11 clusters, these new data will form a unique high quality Chandra/HST dataset because the sample of 26 is completely unbiased with respect to their X-ray properties. Within the Local Cluster Substructure Survey (LoCuSS) we propose to use these data to characterise the systematic uncertainties in X-ray and lensing mass measurements within cluster cores - essential ground-work for cluster cosmology experiments which rely on precise cluster mass measurements. We will use mock cluster observations based on the Millennium Simulations to calibrate our observational measurements and new constraints on cluster physics to further improve the simulations.
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