NOAO >   Observing Info >   Approved Programs >   2012A-0552

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Proposal Information for 2012A-0552


PI: Wayne Barkhouse, University of North Dakota, wayne.barkhouse@email.und.edu
Address: Physics Department, 101 Cornell Street, Grand Forks, North Dakota 58202, USA

CoI: Cody Rude, University of North Dakota
CoI: Jaford Burgad, University of North Dakota
CoI: Alexey Vikhlinin, Harvard-Smithsonian CfA
CoI: Dong-Woo Kim, Harvard-Smithsonian CfA

Title: Optical Counterparts to ChaMPx Extended Sources

Abstract: We request NOAO/KPNO 2.1m time to observe 13 extended X-ray sources detected serendipitously using \it Chandra as part of the extension to our ChaMP project (ChaMPx). These X-ray sources lack deep optical coverage, thus the proposed observations will allow us to; 1) verify the galaxy cluster nature of our extended X-ray sources, 2) estimate photometric redshifts (z\lesssim 1.1) using the location of the red- sequence in the color-magnitude plane, 3) contrast and compare our optical/X-ray cluster detection techniques as a function of cluster mass by comparing X-ray luminosity and temperature measurements with optical richness, and 4) measure additional cluster characteristics, such as color-magnitude relation, luminosity function, and various optical/X-ray properties. This proposal will allow us to finish compiling a statistically meaningful sample in which to compare optical/X-ray cluster detection tools.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2012A-0552

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