3EG J2027+3429: Another blazar behind the Galactic Plane

V. Sguera, A. Malizia, L. Bassani, J. B. Stephen, G. Di Cocco
2004 Astronomy and Astrophysics  
We report on the association of an X-ray source (WGA J2025.1+3342), serendipitously found with BeppoSAX in two separate observations, with the unidentified EGRET source 3EG J2027+3429. The source is detected from 1 keV up to about 100 keV, has a flat (0.6-1.5) spectrum and is highly variable both in intensity and shape. The data indicate marginal evidence for an iron line in the source rest frame. The overall X-ray luminosity is 4 10^{45} erg s^{-1} typical of a quasar. The X-ray source is
more » ... -ray source is coincident in radio with a bright object characterized by a flat spectrum over the band 0.3-10 GHz while in optical it is identified with a quasar at redshift 0.22. All available data indicate a SED compatible with a low frequency peaked or red blazar type object. This identification is interesting because this is the second blazar found behind the galactic plane in the direction of the Cygnus region.
doi:10.1051/0004-6361:20031612 fatcat:45br4pytsrhkthtjrokjtukb2u