77 citations · 448 across the 16 of their papers we have counts for
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astro-ph2008★ 14 cited
New active galactic nuclei detected in ROSAT All Sky Survey galaxies - The complete dataset
W. Kollatschny, R. Kotulla, W. Pietsch +2
The ROSAT ALL Sky Survey Bright Source Catalogue (RASS-BSC) has been correlated with the Catalogue of Principal Galaxies (PGC) to identify new extragalactic counterparts. 550 relia…
astro-ph2006
Spectral line variability amplitudes in AGNs
W. Kollatschny, M. Zetzl, M. Dietrich
We present the results of a long-term variability campaign of very broad-line AGNs with line widths broader than FWHM 5000 kms. The main goal of our investigation was to…