activity
19982008
most citedSteps Toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XVI. A Thirteen-Year Study of Spectral Variability in NGC 5548

201 citations · 401 across the 10 of their papers we have counts for

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astro-ph1999

Strong optical line variability in Mkn 110

K. Bischoff, W. Kollatschny

We present results of a long-term variability campaign on the Seyfert 1 galaxy Markarian 110. Mkn 110 is a narrow-line Seyfert 1 object hosted in a morphological peculiar galaxy. W…