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Scaling Relations from Sunyaev-Zel'dovich Effect and Chandra X-Ray Measurements of High-Redshift Galaxy ClustersWe present Sunyaev-Zel'dovich Effect (SZE) scaling relations for 38 massive galaxy clusters at redshifts 0.14 less than or equal to z less than or equal to 0.89, observed with both the Chandra X-ray Observatory and the centimeter-wave SZE imaging system at the BIMA and OVRO interferometric arrays. An isothermal Beta-model with the central 100 kpc excluded from the X-ray data is used to model the intracluster medium and to measure global cluster properties. For each cluster, we measure the X-ray spectroscopic temperature, SZE gas mass, total mass, and integrated Compton gamma-parameters within r(sub 2500). Our measurements are in agreement with the expectations based on a simple self-similar model of cluster formation and evolution. We compare the cluster properties derived from our SZE observations with and without Chandra spatial and spectral information and find them to be in good agreement. We compare our results with cosmological numerical simulations and find that simulations that include radiative cooling, star formation, and feedback match well both the slope and normalization of our SZE scaling relations.
Document ID
20080018921
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bonamente, Massimiliano
(Alabama Univ. Huntsville, AL, United States)
Joy, Marshall
(NASA Marshall Space Flight Center Huntsville, AL, United States)
LaRoque, Samuel J.
(Chicago Univ. Chicago, IL, United States)
Carlstrom, John E.
(Chicago Univ. Chicago, IL, United States)
Nagai, Daisuke
(California Inst. of Tech. Pasadena, CA, United States)
Marrone, Daniel P.
Date Acquired
August 24, 2013
Publication Date
March 1, 2008
Publication Information
Publication: Astrophysical Journal
Volume: 675
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: AST 00-96913
CONTRACT_GRANT: PHY 01-14422
CONTRACT_GRANT: AST 02-28963
CONTRACT_GRANT: AST 99-81546
CONTRACT_GRANT: AST 06-04982
Distribution Limits
Public
Copyright
Other

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