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2004ApJ...609..564S - Astrophys. J., 609, 564-575 (2004/July-2)

Blazar counterparts for 3EG sources at -40°<Decl.<0°: pushing south through the bulge.

SOWARDS-EMMERD D., ROMANI R.W., MICHELSON P.F. and ULVESTAD J.S.

Abstract (from CDS):

Supplementing existing survey data with Very Large Array (VLA) observations, we have extended γ-ray counterpart identifications down to decl.=-40° using our ``figure-of-merit'' approach. We find blazar counterparts for ∼70% of EGRET sources above decl.=-40° away from the Galaxy. Spectroscopic confirmation is in progress, and spectra for ∼24 sources are presented here. We find evidence that increased exposure in the bulge region allowed EGRET to detect relatively faint blazars; a clear excess of nonblazar objects in this region, however, argues for an additional (new) source class.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: BL Lacertae Objects: General - Galaxies: Active - Gamma Rays: Observations - Radio Continuum: Galaxies - Surveys

VizieR on-line data: <Available at CDS (J/ApJ/609/564): table1.dat table2.dat>

Simbad objects: 144

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