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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Southern cosmology survey. II. Massive optically selected clusters from 70 square degrees of the sunyaev-zel'dovich effect common survey area
Astrophysical Journal, Supplement Series, Volume 191, No. 2, Year 2010
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Description
We present a catalog of 105 rich and massive (M >3 × 10 14M) optically selected clusters of galaxies extracted from 70 deg2 of public archival griz imaging from the Blanco 4 m telescope acquired over 45 nights between 2005 and 2007. We use the clusters' optically derived properties to estimate photometric redshifts, optical luminosities, richness, and masses. We complement the optical measurements with archival XMM-Newton and ROSAT X-ray data which provide additional luminosity and mass constraints on a modest fraction of the cluster sample. Two of our clusters show clear evidence for central lensing arcs; one of these has a spectacular large diameter, nearly complete Einstein Ring surrounding the brightest cluster galaxy. A strong motivation for this study is to identify the massive clusters that are expected to display prominent signals from the Sunyaev-Zel'dovich effect (SZE) and therefore be detected in the wide-area millimeter-band surveys being conducted by both the Atacama Cosmology Telescope and the South Pole Telescope. The optical sample presented here will be useful for verifying new SZE cluster candidates from these surveys, for testing the cluster selection function, and for stacking analyses of the SZE data. © 2010. The American Astronomical Society.
Authors & Co-Authors
Menanteau, Felipe
United States, New Brunswick
Rutgers University–new Brunswick
Hughes, John P.
United States, New Brunswick
Rutgers University–new Brunswick
Barrientos, F. Felipe
Chile, Santiago
Pontificia Universidad Católica de Chile
Deshpande, Amruta J.
United States, New Brunswick
Rutgers University–new Brunswick
Hilton, Matt
South Africa, Durban
University of Kwazulu-natal
Infante, Leopoldo
Chile, Santiago
Pontificia Universidad Católica de Chile
Jimenez, R.
Spain, Barcelona
Universitat de Barcelona
Kosowsky, Arthur B.
United States, Pittsburgh
University of Pittsburgh
Moodley, Kavilan
South Africa, Durban
University of Kwazulu-natal
Spergel, David N.
United States, Princeton
Princeton University
Verde, Licia
Spain, Barcelona
Universitat de Barcelona
Statistics
Citations: 32
Authors: 11
Affiliations: 6
Identifiers
Doi:
10.1088/0067-0049/191/2/340
ISSN:
00670049
Study Design
Cross Sectional Study
Study Approach
Quantitative