Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-06-11
Astron.Astrophys. 425 (2004) 89
Astronomy and Astrophysics
Astrophysics
6 pages, 3 figures. Accepted for publication on A&A Main Journal
Scientific paper
10.1051/0004-6361:20040484
The possible identification by INTEGRAL of the EGRET source 3EG J1736-2908 with the active galactic nucleus GRS 1734-292 is discussed. The latter was discovered in 1990 and later identified with a Seyfert 1 galaxy. At the time of the compilation of the 3rd EGRET Catalog, it was not considered as a possible counterpart of the source 3EG J1736-2908, which remained unidentified. A detailed multiwavelength study of the EGRET error circle is presented, by including archival radio, soft- and hard-X observations, suggesting that GRS 1734-292 could be a likely counterpart of 3EG J1736-2908, even though this poses very interesting questions about the production mechanisms of gamma-rays with energies greater than 100 MeV.
Castro-Tirado Alberto J.
Chaty Sylvain
Cocco G. Di
Dean Anthony J.
Foschini Luca
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