Mass Calibration of Nearby SZE Galaxy Clusters

Details Mass Calibration of Nearby SZE Galaxy Clusters Mass Calibration of Nearby SZE Galaxy Clusters

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009noao.prop..389h&link_type=abstract

NOAO Proposal ID #2009B-0389

Physics

Scientific paper

We propose to obtain deep g- and r-band Blanco/MOSAIC imaging of three optically-rich and X-ray bright clusters, Abell S0592, Abell S0295, and RXC J0217.2-5244, that have been selected based on their detection by the Atacama Cosmology Telescope (ACT) in the Sunyaev- Zel'dovich effect (SZE) at 145 GHz. The clear signature of the SZE is being used to produce a unique sample of galaxy clusters defined only by a lower mass limit and essentially independent of distance. Here we target clusters at fairly low redshift (0.22 < z < 0.34) with an immediate goal of obtaining accurate mass estimates through weak lensing. This project forms part of our larger study of some 30-40 ACT SZE-selected clusters, including a number at high redshift (using VLT/Gemini), with the goal of observationally determining the relationship between SZ flux and cluster mass.

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