Shear-selected Clusters from the Deep Lens Survey

Details Shear-selected Clusters from the Deep Lens Survey Shear-selected Clusters from the Deep Lens Survey

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20514719w&link_type=abstract

American Astronomical Society Meeting 205, #147.19; Bulletin of the American Astronomical Society, Vol. 36, p.1595

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Scientific paper

We present preliminary results from the Deep Lens Survey (DLS) shear-selected cluster search. The DLS is a deep BVRz' weak lensing survey of 20 square degrees, which will produce a sample of 100 shear-selected clusters. We base the lensing analysis on the R band images, which have strictly controlled image quality, and we use the other filters to derive photometric redshifts for ˜ 3 million sources. We present mass maps of several 2 degree by 2 degree fields, yielding a preliminary sample of 18 clusters spanning the redshift range 0.2-0.7. For a few of these clusters, we present more detailed mass maps and tomographic lensing analyses.
Our followup focuses on the X-ray and optical properties of these clusters, which may reveal biases in existing X-ray and optically selected samples. Chandra and/or XMM X-ray observations are soon to be complete for the first fifteen clusters from the sample, and we present mass and X-ray maps of some individual clusters.

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