Issue |
A&A
Volume 414, Number 3, February II 2004
|
|
---|---|---|
Page(s) | 839 - 844 | |
Section | Extragalactic astronomy | |
DOI | https://doi.org/10.1051/0004-6361:20031612 | |
Published online | 27 January 2004 |
3EG J2027+3429: Another blazar behind the Galactic Plane
1
Dipartimento di Astronomia di Bologna, via Ranzani 1, 40127 Bologna, Italy
2
Istituto di Astrofisica Spaziale e Fisica Cosmica Sezione di Bologna, Area di Ricerca di Bologna, Via P. Gobetti 101, Bologna, Italy
Corresponding author: V. Sguera, sguera@bo.iasf.cnr.it
Received:
21
May
2003
Accepted:
19
August
2003
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 () 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
erg s-1, typical
of a quasar. The X-ray source is coincident in radio wavelengths with a bright
object characterized by a flat spectrum over the band 0.3-10 GHz while
in the 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.
Key words: X-rays: galaxies / X-rays: individual: 3EG J2027+3429 / BL Lacertae objects: general
© ESO, 2004
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