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-ph2000

New NLS1 galaxies detected among RASS galaxies

W. Pietsch, K. Bischoff, Th. Boller

Six Narrow-Line Seyfert 1 galaxies have been discovered in optical follow-up spectroscopy of nuclei of galaxies selected for their high X-ray flux in the ROSAT All Sky Survey. We g…