63 citations · 89 across the 3 of their papers we have counts for
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astro-ph.GA2018
Broad-line region structure and line profile variations in the changing look AGN HE1136-2304
W. Kollatschny, M. W. Ochmann, M. Zetzl +5
A strong X-ray outburst was detected in HE1136-2304 in 2014. Accompanying optical spectra revealed that the spectral type has changed from a nearly Seyfert 2 type (1.95), classifie…
astro-ph.GA2018
Long-term optical, UV, and X-ray continuum variations in the changing-look AGN HE 1136-2304
M. Zetzl, W. Kollatschny, M. W. Ochmann +6
A strong outburst in the X-ray continuum and a change of its Seyfert spectral type was detected in HE 1136-2304 in 2014. The spectral type changed from nearly Seyfert 2 type (1.95)…