Mathematics – Logic
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21322004p&link_type=abstract
American Astronomical Society, AAS Meeting #213, #220.04; Bulletin of the American Astronomical Society, Vol. 41, p.390
Mathematics
Logic
Scientific paper
We present a large survey of clusters of galaxies using a new technique that combines the high throughput of XMM Newton and the exquisite imaging quality of the Chandra observatory. We detect 462 new clusters in the archival dataset excluding known sources near the central pointing. A large fraction of the background AGN point sources are removed using this technique resulting in a very high sensitivity of between 10-16 and 10-14 ergs cm-2 s-1 for over 100 sq. degrees of the survey. We also demonstrate that the low end of the flux distribution quite clearly indicates strong evolution of the cluster luminosity function in disagreement with some previous findings but qualitatively consistent with growth of structure models. Future work will be to produce cosmological constraints from the sample.
Bankert Justin
Gupta Rachana
Jernigan Glenn G.
Kahn Steve M.
Peterson John R.
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