The 3000 A bump in quasars and Seyfert galaxies

Details The 3000 A bump in quasars and Seyfert galaxies The 3000 A bump in quasars and Seyfert galaxies

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989acasn..30...22y&link_type=abstract

(Acta Astronomica Sinica, vol. 30, no. 1, 1989, p. 22-26) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 13, Sept. 19

Astronomy and Astrophysics

Astrophysics

Near Ultraviolet Radiation, Quasars, Seyfert Galaxies, Ultraviolet Spectra, Black Body Radiation, Cerenkov Radiation, Iron, Line Spectra

Scientific paper

The 3000-A bump in quasars and Seyfert galaxies is examined using the Cerenkov line emission model. It is suggested that the continuum around 3000 A consists of a nonthermal power-law spectrum, a black body spectrum from the accretion disk, a black body spectrum from broad line region cloudlets, and Fe II lines. Good agreement is found between observations and calculations of the intensity of the 3000 A bump for NGC 4151 using Cerenkov line emission theory.

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