The Hiflugcs Cluster Survey: a Cornerstone for Cosmology

Details The Hiflugcs Cluster Survey: a Cornerstone for Cosmology The Hiflugcs Cluster Survey: a Cornerstone for Cosmology

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1550r&link_type=abstract

Chandra Proposal ID #05800133

Mathematics

Logic

Chandra Proposal Id #05800133

Scientific paper

Statistical studies of galaxy clusters yield tight constraints on cosmological parameters, the formation of large scale structure, and the nature of dark matter/energy. Dominant sources of uncertainty today are systematic effects, affecting flux, gas temperature, and mass measurements. We propose a detailed systematic investigation of processes in the very cluster centers requiring Chandra and a complete statistical sample of bright nearby clusters. HIFLUGCS is the best currently available local cluster sample in terms of homogeneous X-ray selection based on the ROSAT All-Sky Survey, completeness, size, and availability of a large fraction of high quality observations. Analyzing the Chandra observations for this sample we will constrain the density of the universe to competitive accuracy.

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