The Astrophysical Journal Supplement Series

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The Astrophysical Journal Supplement Series Volume 175 Number 1 Create an alert RSS this journal

Stephen E. Healey et al. 2008 ApJS 175 97 doi:10.1086/523302

CGRaBS: An All-Sky Survey of Gamma-Ray Blazar Candidates

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Stephen E. Healey1, Roger W. Romani1, Garret Cotter2, Peter F. Michelson1, Edward F. Schlafly1, Anthony C. S. Readhead3, Paolo Giommi4, Sylvain Chaty5, Isabelle A. Grenier5 and Lawrence C. Weintraub3

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Abstract References Cited By
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 γ-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.

Subject headings

BL Lacertae objects: general; galaxies: active; quasars: general; surveys


Dates

Issue 1 (2008 March)

Received 2007 July 27, accepted for publication 2007 September 1



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