On the difference between Seyfert 1 and Seyfert 2 galaxies

Details On the difference between Seyfert 1 and Seyfert 2 galaxies On the difference between Seyfert 1 and Seyfert 2 galaxies

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..451d&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Aug. 1981, p. 451-458.) Soviet Astronomy Letters, vol. 7, July-Aug. 1981, p. 248-252

Astronomy and Astrophysics

Astronomy

6

Galactic Nuclei, Luminous Intensity, Quasars, Seyfert Galaxies, Bolometers, Galactic Structure, Infrared Radiation, Mass Distribution, X Ray Sources

Scientific paper

Masses and bolometric luminosities are determined for the nuclei of 42 type 1 Seyferts, 17 type 2 Seyferts, and 14 nearby quasars. For Seyferts 1 and quasars the mean ratio of the observed luminosity to the corresponding critical luminosity is 0.46 + or - 0.17, while Seyferts 2 have a mean ratio of 0.01 + or - 0.003. It is demonstrated that the morphological differences between type 1 and type 2 Seyfert nuclei can be reduced to the dimensionless ratio of the bolometric luminosity of the nucleus to the critical Eddington luminosity for the corresponding mass.

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