AAS 207th Meeting, 8-12 January 2006
Session 20 X-ray Studies of AGN and the High Energy Cosmic Background
Poster, Monday, 9:20am-7:00pm, January 9, 2006, Exhibit Hall

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[20.04] High Redshift X-ray Luminous Quasars from the ChaMP

P.J. Green, J.D. Silverman, W.A. Barkhouse, D.-W. Kim, M Kim, B.J. Wilkes, A.E. Mossman, H. Tananbaum (SAO), ChaMP Collaboration

Luminous optically-selected quasars we most common 2-3Gyr after the Big Bang, but we know that much of accretion onto supermassive black holes is obscured, perhaps even more so in the early Universe. Both the intrinsic physical properties of high redshift (z>3) quasars and their population statistics are of interest, but few X-ray-selected examples are known to date. The Chandra Multiwavelength Project now provides a significant number. We present new results on spectral energy distributions and evolution of these objects, including a revised X-ray luminosity function that maximizes the sample size using a large compilation of surveys, with ChaMP the primary contributor at high-z.

If you would like more information about this abstract, please follow the link to http://hea-www.harvard.edu/CHAMP/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: pgreen@cfa.harvard.edu

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