CAOSP abstracts, Volume: 50, No.: 1, year: 2020

Author(s): Ochmann, M.W.; Kollatschny, W.; Zetzl, M.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 1, p. 318-327.
Date: 1/2020
Title: Spectral changes and BLR kinematics of eruptive changing-look AGN
Keyword(s): active galactic nuclei, changing-look, broad line region, accretion disk, spectroscopy, HE 1136-2304, NGC 1566
Pages: 318 -- 327
DOI: https://doi.org/10.31577/caosp.2020.50.1.318
NASA ADS Abstract Service: 2020CoSka..50..318O
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: We present results of recent optical spectroscopic variability campaigns for HE 1136-2304 and NGC 1566 which exhibited X-ray outbursts in July 2014 and June 2018, respectively. We show that the broad line region (BLR) structure in the changing-look AGN HE 1136-2304 is similar to that of non-changing-look AGN and that the BLR kinematics is dominated by Keplerian accretion disk (AD) rotation. Furthermore, we present an optical spectrum of NGC 1566 taken only a few weeks after its X-ray outburst, clearly showing drastic spectral changes.