Active Galactic Nuclei and the spectrum of the X-ray background

Details Active Galactic Nuclei and the spectrum of the X-ray background Active Galactic Nuclei and the spectrum of the X-ray background

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...224l..21s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 224, no. 1-2, Oct. 1989, p. L21-L23.

Astronomy and Astrophysics

Astronomy

236

Active Galactic Nuclei, Background Radiation, X Ray Astronomy, X Ray Spectra, Astronomical Spectroscopy, Galactic Evolution, Interstellar Matter, Quasars, Seyfert Galaxies

Scientific paper

Recent unified theories of Active Galactic Nuclei (AGN) predict the existence of numerous AGN with low energy X-ray cut off in the 10 keV range. The resulting spectrum of the X-ray background produced by all AGN may easily reproduce the observed spectrum. This removes the main obstacle against theories in which most of the X-ray background is due to AGN.

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