Computer Science
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2653m&link_type=abstract
Chandra proposal ID #10800488
Computer Science
1
Scientific paper
We propose a 14ks observation of the z=0.279 galaxy cluster A689 in order to measure the global properties and temperature profile, and finish a statistically complete sample of clusters observed with Chandra and in the Sunyaev-Zel'dovich effect (SZE) with OCRA-p. The sample will be used to investigate X-ray/SZE scaling relations - an important step towards using SZE surveys for precision cosmology. A689 is one of the most luminous clusters known but has yet to be observed by Chandra or XMM. It is bright enough to be included in many cluster surveys, but is often excluded because of possible point source contamination. This Chandra observation will measure any such contamination and determine whether A689 should be included in statistically complete cluster samples.
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