Cluster Masses at Moderate Redshifts

Details Cluster Masses at Moderate Redshifts Cluster Masses at Moderate Redshifts

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..169e&link_type=abstract

Chandra Proposal ID #01800858

Computer Science

Chandra Proposal Id #01800858

Scientific paper

We propose AXAF ACIS observations of four of the the CNOC/EMSS galaxy clusters at 0.18 < z < 0.55. These clusters have already been used in extensive studies of the cluster mass profiles via dynamical, X-ray and gravitational lensing methods. More detailed AXAF observations will allow us to refine our comparisons between these three methods and resolve discrepancies arising from spatial and temperature substructure. Extension of the X-ray profiles to larger radii will allow a more robust determination of the baryon fraction and baryon-to-light ratios for these clusters. Finally, correlations between galaxy properties and X-ray gas densities will allow us to investigate environmental mechanisms for galaxy evolution. We will also make full use of archival observations of this sample.

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