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Title:
Studying Clusters of Galaxies with Chandra and Sunyaev-Zel'dovich Effect Measurements from the South Pole Telescope
Authors:
Benson, Bradford; The Spt Team
Affiliation:
AA(University of Chicago)
Publication:
Chandra's First Decade of Discovery, Proceedings of the conference held 22-25 September, 2009 in Boston, MA. Edited by Scott Wolk, Antonella Fruscione, and Douglas Swartz, abstract #67
Publication Date:
09/2009
Origin:
AUTHOR
Keywords:
Clusters of Galaxies
Bibliographic Code:
2009cfdd.confE..67B

Abstract

The combination of measurements from the South Pole Telescope (SPT) and Chandra will provide a unique data set to understand the thermal history and formation of clusters of galaxies. The SPT is a 10-meter millimeter wavelength telescope designed to do a Sunyaev Zel'dovich (SZ) survey for clusters of galaxies in three frequency bands at 95, 150, and 220 GHz. Relative to previous SZ experiments, SPT has an unprecedented sensitivity that is allowing it to discover a new sample of high redshift clusters. Already, Chandra has made measurements of several SPT discovered clusters. In addition, SPT's multiple frequencies and relatively soft spatial filtering helps it to study gas in the outskirts of clusters. The combination of SPT and Chandra cluster measurements will be a unique data set to probe the thermodynamics of intra-cluster gas, in principle out to a cluster's virial radius, and will do this for a SZ selected cluster sample that will extend to higher redshifts than previous samples. Work is underway performing a joint analysis of Chandra and SPT measurements for a set of massive well-known X-ray luminous clusters. As the SPT catalog expands, we hope to extend this analysis to more clusters, and to learn about the accretion and thermal history of intra-cluster gas out to the earliest epochs of cluster formation in the universe.
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