[170.18] The Hubble Constant From Combined Analysis of Sunyaev-Zel'dovich Effect and X-ray Data of 39 High Redshift Galaxy Clusters

AAS 207th Meeting, 8-12 January 2006
Session 170 Cosmology, Early Universe, Cosmic Distance Scale
Poster, Thursday, 9:20am-4:00pm, January 12, 2006, Exhibit Hall

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[170.18] The Hubble Constant From Combined Analysis of Sunyaev-Zel'dovich Effect and X-ray Data of 39 High Redshift Galaxy Clusters

M. Bonamente (UAH), M. Joy (NASA/MSFC), S. LaRoque, J. Carlstrom (U. Chicago), E. Reese (U.C. Davis), K. Dawson (U.C. Berkeley)

We present a new determination of the cosmic distance scale at high redshift using the joint analysis of high redshift (0.14 < z <0.89) Chandra X-ray and OVRO and BIMA Sunyaev-Zel'dovich (SZ) effect data of a sample of 39 high redshift (0.14 < z <0.89) galaxy clusters. The SZ/X-ray distance determinations are completely independent of the traditional cosmic distance ladder and provide a valuable check of - and are complementary to - low-redshift determinations of the expansion rate such as the HST Key project results. We review the technique, including the inherent assumptions and possible systematics, and present the results.

The author(s) of this abstract have provided an email address for comments about the abstract: bonamem@uah.edu

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