Sunyaev Zel'dovich Array (SZA) Observations of an Optically Selected Cluster Sample

Details Sunyaev Zel'dovich Array (SZA) Observations of an Optically Selected Cluster Sample Sunyaev Zel'dovich Array (SZA) Observations of an Optically Selected Cluster Sample

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21732103g&link_type=abstract

American Astronomical Society, AAS Meeting #217, #321.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the early results of a study of 24 galaxy clusters selected as a volume-limited sample from the Sloan Digital Sky Survey (SDSS). The sample contains the 24 richest clusters in the SDSS maxBCG catalog between redshift 0.15 and 0.3, and has complimentary SZA and Chandra observations for each cluster. We measure the scaling and covariance of these different data sets, specifically focusing on the SZ and optical data. Several previous studies have shown that combining information from different frequencies reduces systematics inherent in observations in the individual frequencies. By doing so, we hope to lay the groundwork for precision cosmology with large, optically-selected cluster samples combined with SZ data, such as from the Dark Energy Survey and the South Pole Telescope.

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