3EG J2027+3429 another Blazar behind the Galactic Plane

Details 3EG J2027+3429 another Blazar behind the Galactic Plane 3EG J2027+3429 another Blazar behind the Galactic Plane

2003-08-27

arxiv.org/abs/astro-ph/0308473v1

Astron.Astrophys.414:839-844,2004

Astronomy and Astrophysics

Astrophysics

6 pages, 5 figures, 3 tables, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20031612

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 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.

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