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Sunyaev-Zeldovich Effect-Derived Distances to the High-Redshift ClustersWe determine the distances to the z approximately equals 0.55 galaxy clusters MS 0451.6 - 0305 and Cl 0016 + 16 from a maximum-likelihood joint fit to interferometric Sunyaev-Zeldovich effect (SZE) and X-ray observations. We model the intracluster medium (ICM) using a spherical isothermal beta model. We quantify the statistical and systematic uncertainties inherent to these direct distance measurements, and we determine constraints on the Hubble parameter for three different cosmologies. For an Omega(sub M) = 0.3, Omega(sub lambda) = 0.7 cosmology, these distances imply a Hubble constant of 63(sup +12) (sub -9) (sup + 21) (sub -21) km/s Mp/c, where the uncertainties correspond to statistical followed by systematic at 68% confidence. The best-fit H(sub 0) is 57 km/s Mp/c for an open (Omega(sub M) = 0.3) universe and 52 km/s Mp/c for a flat (Omega(sub M) = 1) universe.
Document ID
20000070733
Acquisition Source
Jet Propulsion Laboratory
Document Type
Reprint (Version printed in journal)
Authors
Reese, Erik D.
(Chicago Univ. Chicago, IL United States)
Mohr, Joseph J.
(Chicago Univ. Chicago, IL United States)
Carlstrom, John E.
(Chicago Univ. Chicago, IL United States)
Joy, Marshall
(NASA Marshall Space Flight Center Huntsville, AL United States)
Grego, Laura
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA United States)
Holder, Gilbert P.
(Chicago Univ. Chicago, IL United States)
Holzapfel, William L.
(California Univ. Berkeley, CA United States)
Hughes, John P.
(Rutgers Univ. Piscataway, NJ United States)
Patel, Sandeep K.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Donahue, Megan
(Space Telescope Science Inst. Baltimore, MD United States)
Date Acquired
August 19, 2013
Publication Date
April 10, 2000
Publication Information
Publication: Astrophysical Journal
Publisher: American Astronomical Society
Volume: 533
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: NAS8-39073
CONTRACT_GRANT: NAG5-7986
CONTRACT_GRANT: NGT-51201
CONTRACT_GRANT: NAG5-50173
CONTRACT_GRANT: NSF AST-96-13998
CONTRACT_GRANT: NSF AST-96-13717
CONTRACT_GRANT: NGT8-52863
Distribution Limits
Public
Copyright
Other

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