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arXiv.org > astro-ph > arXiv:0709.1735 Title: CGRaBS: An All-Sky Survey of Gamma-Ray Blazar Candidates Authors: Stephen E. Healey, Roger W. Romani, Garret Cotter, Peter F. Michelson, Edward F. Schlafly, Anthony C. S. Readhead, Paolo Giommi, Sylvain Chaty, Isabelle A. Grenier, Lawrence C. Weintraub (Submitted on 11 Sep 2007) We describe a uniform all-sky survey of bright blazars, selected primarily by their flat radio spectra, that is designed to provide a large catalog of likely gamma-ray AGN. The defined sample has 1625 targets with radio and X-ray properties similar to those of the EGRET blazars, spread uniformly across the |b| > 10 deg sky. We also report progress toward optical characterization of the sample; of objects with known R < 23, 85% have been classified and 81% have measured redshifts. One goal of this program is to focus attention on the most interesting (e.g., high redshift, high luminosity, ...) sources for intensive multiwavelength study during the observations by the Large Area Telescope (LAT) on GLAST. Comments: 18 pages, 6 figures, 1 machine-readable table available at this http URL ; accepted for publication in ApJS Subjects: Astrophysics (astro-ph) Cite as: arXiv:0709.1735v1 [astro-ph] Submission history From: Stephen Healey [view email] [v1] Tue, 11 Sep 2007 23:57:03 GMT (310kb)