Masses of high-redshift clusters via SZ effect observations

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Dawson, Kyle
Other Author Grego, Laura; Joy, Marshall; Carlstrom, John E.; Laroque, Samuel; Nagai, Daisuke; Ebeling, Harald; Reese, Erik D.; Holzapfel, William L.
Title Masses of high-redshift clusters via SZ effect observations
Date 2002
Description We present Sunyaev-Zel'dovich Effect (SZE) observations of distant, highly X-ray luminous clusters of galaxies. We use the SZE data to constrain their total masses, independent of X-ray observations. To do this, we assume the clusters have the same gas mass fraction as that derived from SZE measurements of a sample of known massive clusters, and then infer each cluster's mass from its SZE data. In the systems with published X-ray temperatures, we find good agreement between our SZE-derived temperatures and those inferred from X-ray spectroscopy; in the system without X-ray derived temperatures, the SZE data provide the first confirmation that it is indeed a massive system. The abundance of clusters at high redshift is critically sensitive to the values of the cosmological parameters and so the demonstrated ability to determine cluster temperatures and masses from SZE observations independent of X-ray data illustrates the power of using deep SZE surveys to probe the distant universe.
Type Text
Publisher Astronomical Society of the Pacific
Volume 268
First Page 113
Last Page 120
Subject Sunyaev-Zel'dovich Effect; X-rays; Redshift
Subject LCSH Astronomy -- Observations; Galaxies -- Clusters
Language eng
Bibliographic Citation Grego, L., Joy, M., Carlstrom, J. E., Laroque, S., Nagai, D., Dawson, K., Ebeling, H., Reese, E. D., & Holzapfel, W. L. (2002). Masses of high-redshift clusters via SZ effect observations. ASP Conference Series, 268, 113-20.
Rights Management (c) Astronomical Society of the Pacific
Format Medium application/pdf
Format Extent 527,255 bytes
Identifier ir-main,12048
ARK ark:/87278/s67m0s63
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2013-02-07
ID 704134
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