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19992026
most citedLong term optical and X-ray variability of the Seyfert galaxy Markarian 79

108 citations · 396 across the 20 of their papers we have counts for

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astro-ph.GA2018★ 48 cited

Space Telescope and Optical Reverberation Mapping Project. X. Understanding the Absorption-Line Holiday in NGC 5548

M. Dehghanian, G. J. Ferland, G. A. Kriss +27

The flux variations in the emission lines in active galactic nuclei (AGNs) are driven by variations in the ionizing continuum flux --which are usually reflected in the observable U…