Gamma rays from AGNs.

Details Gamma rays from AGNs. Gamma rays from AGNs.

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pabei...7..180y&link_type=abstract

Prog. Astron., Vol. 7, No. 3, p. 180 - 199

Other

Gamma-Ray Background, Active Galactic Nuclei: Gamma Rays, Quasars: Gamma Rays

Scientific paper

The authors describe the identification of γ-ray AGNs by using the database of cosmic γ-rays above 100 MeV from the SAS-2 satellite. Gamma-ray emissions from 11 quasars, 3 BL Lac objects and 1 radiogalaxy have been identified. Then they describe the determination of the contribution from AGNs to the extragalactic γ-ray background and conclude that the extragalactic γ-ray background is likely to be generated by active galaxies such as quasars and Seyfert galaxies. Finally, they combine the data from the γ-ray region and those from other wavebands for 3 γ-ray AGNs to investigate the emission mechanisms of radiations from these objects.

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