The masses of twenty-eight active galactic nuclei

Details The masses of twenty-eight active galactic nuclei The masses of twenty-eight active galactic nuclei

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988acasn..29...38l&link_type=abstract

(Acta Astronomica Sinica, vol. 29, 1988, p. 38-47) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 12, Sept. 1988, p.

Astronomy and Astrophysics

Astronomy

Active Galactic Nuclei, Galactic Mass, Quasars, Seyfert Galaxies, X Ray Sources, Accretion Disks, Black Holes (Astronomy), Luminosity, Radio Galaxies

Scientific paper

Based on a statistical analysis about the X-ray variability Δtx and the X-ray luminosity Lx (2 - 10 keV) in a sample of 22 Seyfert galaxies, 5 nearby quasars and 1 radio galaxy, and the range of the ratio between total luminosities Lt and Eddington luminosity LEdd (λ = Lt/LEdd) obtained under the assumption of thick accretion disc in mechanical equilibrium (the only forces present being gravitation, rotation and pressure gradients), the author has estimated the masses of the massive objects at the centre of those active galaxies and the size of X-ray emission region.

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