Mathematics – Logic
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.9105h&link_type=abstract
American Astronomical Society Meeting 204, #91.05; Bulletin of the American Astronomical Society, Vol. 36, p.822
Mathematics
Logic
Scientific paper
Observational studies of cluster evolution over moderate redshift ranges are a powerful tool for constraining cosmological parameters, yet full knowledge of the properties of these clusters remains elusive. By virtue of a highly efficient optical selection technique, the Red Sequence Cluster Survey (RCS) has detected a large sample of high redshift cluster candidates. All six of the clusters from this sample which have recently been observed with the Chandra X-Ray Observatory were detected in the X-ray. These follow-up observations (0.64 < z < 1.0) indicate that these clusters are systematically less luminous than their similarly rich, X-ray selected counterparts. Comparisons with X-ray selected samples suggest that this discrepancy may be due in part to differences in the spatial structure of the clusters. Our initial results from Chandra follow-up observations of six RCS clusters will be presented, including some preliminary spectral information.
Bautz Mark W.
Ellingson Erica E.
Garmire Gordon P.
Gladders Michael D.
Hicks Amalia K.
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