3 papers
astro-ph.GA2026
In the Eye of the Storm: The Third Giant X-ray Outburst of the Extreme Changing-look AGN IC 3599
D. Grupe, S. Komossa, W. Zheng +10
We report the discovery and multiwavelength follow-up observations of a giant (factor >100) X-ray outburst of the exceptional changing-look active galactic nucleus (AGN) IC 3599. T…
astro-ph.GA2026
Spectropolarimetry of the changing-look active galactic nucleus NGC 1566 and its potential link to supermassive black hole binaries
F. Marin, V. H. Sasse, J. Biedermann +4
The AGN NGC~1566 is known to present dramatic and regular spectral shape changes, associated with the appearance and disappearance of broad emission lines. The underlying mechanism…
astro-ph.GA2026
Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020
V. L. Oknyansky, Kh. M. Mikailov, N. A. Huseynov
The results of spectral observations of NGC 3516 with the 2-m telescope of the Shamakhy Astrophysical Observatory during 2016-2020 are presented. In the first half of 2016, the int…