Massive Optically-selected Clusters In The Act Strip

Details Massive Optically-selected Clusters In The Act Strip Massive Optically-selected Clusters In The Act Strip

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344807m&link_type=abstract

American Astronomical Society, AAS Meeting #213, #448.07; Bulletin of the American Astronomical Society, Vol. 41, p.336

Mathematics

Probability

Scientific paper

We present an update of the first results from the Southern Cosmology Survey, a multi wavelength survey of the southern sky coordinated with the Atacama Cosmology Telescope (ACT), a recently commissioned ground-based mm-band Cosmic Microwave Background (CMB) experiment which is currently mapping the southern sky around DEC:-55 deg. In this poster we update our recent analysis of archival optical multi-band imaging data (Menanteau et al. 2008) obtained by the Blanco 4-m telescope and Mosaic-II camera over a significantly larger area which allow us to make statistical studies of clusters of galaxies and their correlation with CMB anisotropies. We describe our cluster finding process and test simulations that use the combination of a matched spatial filter, photometric redshift probability distributions and richness estimation. We present redshifts, richness estimates, luminosities, and masses for new massive optically-selected clusters with z<0.7 which will also overlap with upcoming observations by the South Pole Telescope and the Atacama Pathfinder Experiment.
Financial support was provided by the NSF under the PIRE program (OISE-0530095).

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