activity
20062009
most citedA Reverberation-Based Mass for the Central Black Hole in NGC 4151

211 citations · 572 across the 6 of their papers we have counts for

collaborators
Showing astro-phShow all

2 papers · 1 filter

astro-ph2006★ 29 cited

Disparate MgII Absorption Statistics towards Quasars and Gamma-Ray Bursts : A Possible Explanation

Stephan Frank, Misty C. Bentz, Krzysztof Z. Stanek +4

We examine the recent report by Prochter et al. (2006) that gamma-ray burst (GRB) sight lines have a much higher incidence of strong MgII absorption than quasar sight lines. We pro…

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…