CGRaBS: An All‐Sky Survey of Gamma‐Ray Blazar Candidates
Healey, Stephen E. ; Romani, Roger W. ; Cotter, Garret ; ...Giommi, Paolo ; et al.
Mar - 2008
DOI: 10.1086/523302
ISSN : 0067-0049 ;
journal : The Astrophysical Journal Supplement Series

Issue : 1
type: Article Journal

Abstract
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 active galactic nuclei (AGNs). 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° 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.

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