Very low luminosity active galaxies and the X-ray background

Details Very low luminosity active galaxies and the X-ray background Very low luminosity active galaxies and the X-ray background

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283..479e&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 283, Aug. 15, 1984, p. 479-485.

Astronomy and Astrophysics

Astrophysics

55

Active Galaxies, Cosmic X Rays, Galactic Nuclei, H Alpha Line, Luminosity, Spiral Galaxies, X Ray Sources, Active Galactic Nuclei, Background Radiation, Bivariate Analysis, Heao 2, Quasars, Seyfert Galaxies

Scientific paper

The properties of very low luminosity active galactic nuclei are not well studied, and, in particular, their possible contribution to the diffuse X-ray background is not known. In the present investigation, an X-ray luminosity function for the range from 10 to the 39th to 10 to the 42.5th ergs/s is constructed. The obtained X-ray luminosity function is integrated to estimate the contribution of these very low luminosity active galaxies to the diffuse X-ray background. The construction of the X-ray luminosity function is based on data obtained by Keel (1983) and some simple assumptions about optical and X-ray properties.

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