696 citations · 995 across the 11 of their papers we have counts for
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astro-ph2003★ 50 cited
Spin orientation of supermassive black holes in active galaxies
W. Kollatschny
Accretion of gas onto a central supermassive black hole is generally accepted to be the source of the emitted energy in active galactic nuclei.The broad emission lines we observe i…
astro-ph1993★ 90 cited
Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. VI. Variability of NGC 3783 from ground-based data
G. M. Stirpe
The Seyfert 1 galaxy NGC 3783 was intensely monitored between 1991 December and 1992 August. We present the results from the ground-based observations in the optical and near-IR, w…