1.9k citations · 17.7k across the 134 of their papers we have counts for
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astro-ph2001★ 135 cited
Variability of Active Galactic Nuclei
Bradley M. Peterson
Continuum and emission-line variability of active galactic nuclei provides a powerful probe of microarcsecond scale structures in the central regions of these sources. In this cont…
astro-ph2001★ 69 cited
Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Akn 564. III. Optical Observations and the Optical--UV--X-ray Connection
O. Shemmer, P. Romano, R. Bertram +36
We present the results of a two-year long optical monitoring program of the narrow-line Seyfert 1 galaxy Akn 564. The majority of this monitoring project was also covered by X-ray…