Observational distinction between two types of active galactic nuclei

Details Observational distinction between two types of active galactic nuclei Observational distinction between two types of active galactic nuclei

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....101...71x&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 101, Jan. 1991, p. 71-77. Research supported by NNSFC.

Astronomy and Astrophysics

Astronomy

16

Active Galactic Nuclei, Bl Lacertae Objects, Quasars, Seyfert Galaxies, Accretion Disks, Luminosity, Relativistic Electron Beams

Scientific paper

Using three criteria, the observational distinction between relativistic beaming and pure accretion for 69 active galaxies, including Seyferts, Quasars, and BL Lac objects are discussed. The first criterion is whether the inferred efficiency of the conversion of accreted matter into energy is greater than 0.1 or not. The second one is whether the observed flux is larger than the classical Eddington luminosity or not. The third is concerned in the strong coupling of geometrical and physical effects in jets. The result suggests distinguishing active galactic nuclei into two types.

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