Sunyaev-Zel'dovich Observations of Strong Lensing Galaxy Clusters

Details Sunyaev-Zel'dovich Observations of Strong Lensing Galaxy Clusters Sunyaev-Zel'dovich Observations of Strong Lensing Galaxy Clusters

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21722704g&link_type=abstract

American Astronomical Society, AAS Meeting #217, #227.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We have conducted Sunyaev-Zel'dovich (SZ) observations of strong lensing selected galaxy clusters using the Sunyaev Zel'dovich Array (SZA), which is part of the Combined Array for Research in Millimeter-wave Astronomy. The SZA is an 8-element interferometer that operates at 30 and 90 GHz. The SZA is sensitive to scales of a few arcminutes, while strong lensing mass modeling constrains the mass at small scales (typically < 30"). Combining the two provides information about the projected concentrations of the strong lensing clusters, which we compare with theoretical expectations. We also compare the shapes and orientations of the clusters' SZ signals with the locations of the lensed images and with the shapes and orientations of the brightest cluster galaxies.

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