2005A&A...430..107S

Query : 2005A&A...430..107S

2005A&A...430..107S - Astronomy and Astrophysics, volume 430, 107-113 (2005/1-4)

Is 3C 111, an apparently normal radio galaxy, the counterpart of 3EG J0416+3650?

SGUERA V., BASSANI L., MALIZIA A., DEAN A.J., LANDI R. and STEPHEN J.B.

Abstract (from CDS):

The Third EGRET Catalog (3EG) lists 66 high-confidence identifications of sources with Active Galactic Nuclei (AGN). All are classified as belonging to the blazar class, with the only exception of the nearby radio galaxy Centaurus A. We report and strengthen the association of another radio galaxy, 3C 111, with the EGRET source 3EG J0416+3650. At the time of the compilation of the 3EG catalogue, 3C 111 has been considered as a low-confidence counterpart of 3EG J0416+3650, being located outside the 99% γ-ray probability contour. Since this first suggestion, no other counterparts have been reported nor the EGRET error box has been searched for likely candidates. 3C 111 has never been considerated or cited in literature as a radiogalaxy counterpart of an EGRET source. We report a detailed multiwavelength study of the EGRET error box as well as for the first time the overall spectral energy distribution of 3C 111, which appears to be intriguingly similar to those of blazars, suggesting that the radiogalaxy 3C 111 is the likely counterpart of 3EG J0416+3650.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observations - X-rays: individuals: 3EG J0416+3650 - X-rays: general

Simbad objects: 33

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Number of rows : 33
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 1RXS J041145.6+370315 X 04 11 45.6 +37 03 15           ~ 1 0
2 NVSS J041406+361548 Rad 04 14 06.7 +36 15 48           ~ 3 1
3 1RXS J041412.2+363611 X 04 14 12.2 +36 36 11           ~ 1 0
4 NVSS J041445+360236 Rad 04 14 50.0 +36 02 42           ~ 4 2
5 NVSS J041455+360250 Rad 04 14 55.10 +36 02 50.7           ~ 2 0
6 WN J0415.0+3754 Rad 04 15.0 +37 54           ~ 1 0
7 NVSS J041511+365802 Rad 04 15 11.1 +36 58 03           ~ 3 1
8 NVSS J041533+353940 Rad 04 15 33.0 +35 39 40           ~ 3 1
9 3EG J0416+3650 rG 04 16 +36.8           ~ 15 1
10 1RXS J041605.8+354510 X 04 16 05.8 +35 45 10           ~ 1 0
11 HD 26900 PM* 04 16 32.6548401528 +36 30 06.574084344   9.20 8.26     K2.5V 32 0
12 NVSS J041642+355303 Rad 04 16 42.9 +35 53 01           ~ 3 1
13 1RXS J041645.0+380837 X 04 16 45.0 +38 08 37           ~ 1 0
14 TXS 0414+378 Rad 04 17 +37.9           ~ 1 0
15 GB6 J0417+3631 Rad 04 17 19.60 +36 31 36.0           ~ 1 0
16 1ES 0414+36.5 X 04 18 07 +36 42.6           ~ 2 0
17 NVSS J041820+380148 Rad 04 18 20.90 +38 01 48.6           ~ 2 0
18 3C 111 Sy1 04 18 21.2772425736 +38 01 35.801359968   19.75 18.05     ~ 950 1
19 GB6 J0418+3801 Rad 04 18 22.10 +38 01 47.0           ~ 4 0
20 1RXS J041824.5+363827 X 04 18 24.5 +36 38 27           ~ 1 0
21 1RXS J041834.7+362325 X 04 18 34.7 +36 23 25           ~ 1 0
22 1RXS J041840.0+353649 X 04 18 40.00 +35 36 49.0           ~ 1 0
23 B3 0415+379B Rad 04 18 58.1 +38 01 26           ~ 1 0
24 GB6 J0418+3623 Rad 04 18 59.40 +36 23 53.0           ~ 1 0
25 4C 36.08 Rad 04 18 59.4 +36 24 02           ~ 4 1
26 1RXS J041903.8+371856 X 04 19 03.8 +37 18 56           ~ 1 0
27 1RXS J041928.8+380010 X 04 19 28.8 +38 00 10           ~ 1 0
28 1RXS J042005.2+360630 X 04 20 05.2 +36 06 30           ~ 1 0
29 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4484 3
30 NGC 6251 Sy2 16 32 31.96989253 +82 32 16.3999044 15.24 14.66 12.89 7.62   ~ 727 0
31 Granat 1733-290 X 17 36 -29.1           ~ 1 0
32 NVSS J173704-153301 Rad 17 37 04.7 -15 33 01           ~ 4 1
33 AX J1739.5-2910 Q? 17 38 56.7 -29 08 25           G-KIII 45 0

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