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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-ph2000★ 10 cited

Variability of NGC 4051 and the Nature of Narrow-Line Seyfert 1 Galaxies

B. M. Peterson, I. M. McHardy, B. J. Wilkes

We report on a three-year program of coordinated X-ray and optical monitoring of the Narrow-Line Seyfert 1 galaxy NGC 4051. The rapid continuum variations observed in the X-ray spe…