Cosmology from Future Xray/Optical Cluster Surveys

Details Cosmology from Future Xray/Optical Cluster Surveys Cosmology from Future Xray/Optical Cluster Surveys

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.1405m&link_type=abstract

American Astronomical Society, HEAD Meeting #5, #14.05; Bulletin of the American Astronomical Society, Vol. 32, p.1202

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I will discuss the cosmological interpretations of the future Sloan-ROSAT Cluster Survey; a new large area sample of X-ray/Optical clusters selected from the Sloan Digital Sky Survey and archival ROSAT data. These new data will provide a unique sample for studying the evolution of the X-ray Cluster Luminosity Function (XCLF) since it will (a) probe both high and low redshift clusters in one catalog, (b) have a well-defined selection function, (c) contain physically meaningful cluster parameters, and (d) possess thousands of clusters covering a wide range of masses. I will present here, preliminary results on the XCLF as well as a first look at superclustering as a function of redshift and color. I will also discuss optical and X-ray correlations among galaxy clusters. I will discuss how these and future measurements will provide robust tests of both the underlying cosmological model as well as placing constraints on cosmological parameters such as Ω m, σ 8 and n.

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