348 citations · 4k across the 84 of their papers we have counts for
Showing 2012 · astro-ph.COShow all
3 papers · 2 filters
astro-ph.CO2012★ 77 cited
The shape of broad-line profiles in AGN
W. Kollatschny, M. Zetzl
We present a study of the broad optical/UV emission line profiles in AGN (active galactic nuclei) to get information on the dominant velocity components (turbulence, rotation, etc.…
astro-ph.CO2012★ 13 cited
The environment of AGNs and the activity degree of their surrounding galaxies
W. Kollatschny, A. Reichstein, M. Zetzl
Aims. We present results of a comprehensive spectral study on the large-scale environment of AGNs based on Sloan Spectroscopic Survey data. Methods. We analyzed the spectra of gala…
astro-ph.CO2012★ 100 cited
Spectral Optical Monitoring of the Narrow Line Seyfert 1 galaxy Ark 564
A. I. Shapovalova, L. C. Popovic, A. N. Burenkov +14
We present the results of a long-term (1999--2010) spectral optical monitoring campaign of the active galactic nucleus (AGN) Ark 564, which shows a strong Fe II line emission in th…