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- W1569201991 abstract "This paper summarizes the observations which provide the best evidence for the presence of black holes in active galactic nuclei. This includes: X-ray variability; kinematical studies using optical emission lines as well as the distribution of megamaser spots; and the shape of the Fe K$alpha$ X-ray emission line. It also presents the current status of our understanding of jet-dominated active galaxies (blazars), and briefly reviews the currently popular AGN ``Unification Schemes.''" @default.
- W1569201991 created "2016-06-24" @default.
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- W1569201991 date "1999-03-10" @default.
- W1569201991 modified "2023-09-27" @default.
- W1569201991 title "Black holes in Active Galactic Nuclei: observations" @default.
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