2004A&A...414..839S

Query : 2004A&A...414..839S

2004A&A...414..839S - Astronomy and Astrophysics, volume 414, 839-844 (2004/2-2)

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

SGUERA V., MALIZIA A., BASSANI L., STEPHEN J.B. and DI COCCO G.

Abstract (from CDS):

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 (Γ=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 ∼4x1045erg/s, 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 0.3-10GHz 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.

Abstract Copyright: ∼

Journal keyword(s): X-rays: galaxies - X-rays: individual: 3EG J2027+3429 - BL Lacertae objects: general

Simbad objects: 24

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Number of rows : 24
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 QSO J2015+371 BLL 20 15 28.72978661 +37 10 59.5147372     21.82 21.4   ~ 299 2
2 V* V404 Cyg HXB 20 24 03.8254458776 +33 52 01.962185735           G9/K0III/V 1277 0
3 1WGA J2024.1+3418 X 20 24 08.20 +34 18 50.0           ~ 1 0
4 1WGA J2024.2+3406 X 20 24 15.90 +34 06 40.0           ~ 1 0
5 1RXS J202422.2+344631 Ro* 20 24 21.3679031256 +34 46 34.766961744   12.37 11.49 11.36   ~ 3 0
6 1WGA J2024.3+3347 X 20 24 23.50 +33 47 16.0           ~ 1 0
7 1WGA J2024.4+3437 X 20 24 27.194 +34 36 41.00           ~ 1 0
8 1WGA J2024.5+3422 X 20 24 31.32 +34 22 44.0           ~ 1 0
9 1WGA J2024.9+3338 X 20 24 55.00 +33 38 05.0           ~ 1 0
10 1WGA J2025.1+3342 X 20 25 10.50 +33 43 00.0           ~ 2 0
11 QSO B2023+336 BLL 20 25 10.84210426 +33 43 00.2143556       0   ~ 172 1
12 1WGA J2025.4+3403 X 20 25 28.40 +34 03 06.0           ~ 1 0
13 1RXS J202550.8+350938 X 20 25 50.8 +35 09 38           ~ 1 0
14 1WGA J2025.9+3339 X 20 25 59.60 +33 39 14.0           ~ 1 0
15 1WGA J2026.0+3350 X 20 26 03.60 +33 50 24.0           ~ 1 0
16 1WGA J2026.2+3352 X 20 26 17.30 +33 52 52.0           ~ 1 0
17 1WGA J2026.3+3340 X 20 26 19.00 +33 40 50.0           ~ 1 0
18 1WGA J2026.3+3343 X 20 26 21.20 +33 43 54.0           ~ 1 0
19 1WGA J2026.5+3330 X 20 26 35.1239897376 +33 30 37.747807704           ~ 1 0
20 1RXS J202635.2+331758 X 20 26 35.2 +33 17 58           ~ 1 0
21 3EG J2027+3429 BL? 20 26 36.7 +34 49 45           ~ 22 0
22 1WGA J2026.9+3343 X 20 26 58.6 +33 42 53           ~ 3 0
23 1WGA J2027.6+3344 X 20 27 38.00 +33 44 41.0           ~ 1 0
24 PSR J2028+3332 Psr 20 28 19.876 +33 32 04.23           ~ 64 0

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