Investigating the EGRET-radio galaxies link with INTEGRAL: The case of 3EG J1621+8203 and NGC 6251

Open Access
Authors
  • L. Foschini
  • M. Chiaberge
  • P. Grandi
  • I.A. Grenier
  • M. Guainazzi
  • W. Hermsen
  • G.G.C. Palumbo
  • J. Rodriguez
  • S. Chaty
  • S. Corbel
  • G. Di Cocco
  • L. Kuiper
  • G. Malaguti
Publication date 2005
Journal Astronomy & Astrophysics
Volume | Issue number 433 | 2
Pages (from-to) 515-518
Organisations
  • Faculty of Science (FNWI) - Anton Pannekoek Institute for Astronomy (API)
Abstract The analysis of an INTEGRAL AO2 observation of the error contours of the EGRET source 3EG J1621+8203 is presented. The only source found inside the error contours for energies between 20 and 30 keV at 5sigma detection significance is the FR I radio galaxy NGC 6251. This supports the identification of NGC 6251 with 3EG J1621+8203. The observed flux is higher and softer than observed in the past, but consistent with a variable blazar-like spectral energy distribution.
Document type Article
Note © EDP Sciences 2005
Language English
Published at https://doi.org/10.1051/0004-6361:20042353
Other links http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005A%26A...433..515F&db_key=AST&high=3ed1d2904218539
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