| NGC 6240: A triple nucleus system in the advanced or final state of merging W Kollatschny, PM Weilbacher, MW Ochmann, D Chelouche, ... Astronomy & Astrophysics 633, A79, 2020 | 49 | 2020 |
| Broad-line region structure and line profile variations in the changing look AGN HE 1136-2304 W Kollatschny, MW Ochmann, M Zetzl, M Haas, D Chelouche, S Kaspi, ... Astronomy & Astrophysics 619, A168, 2018 | 25 | 2018 |
| Optical and X-ray discovery of the changing-look AGN IRAS 23226-3843 showing extremely broad and double-peaked Balmer profiles W Kollatschny, D Grupe, ML Parker, MW Ochmann, N Schartel, E Herwig, ... Astronomy & Astrophysics 638, A91, 2020 | 22 | 2020 |
| Long-term optical, UV, and X-ray continuum variations in the changing-look AGN HE 1136-2304 M Zetzl, W Kollatschny, MW Ochmann, D Grupe, M Haas, M Ramolla, ... Astronomy & Astrophysics 618, A83, 2018 | 20 | 2018 |
| Spectral changes and BLR kinematics of eruptive changing-look AGN MW Ochmann, W Kollatschny, M Zetzl | 7 | 2020 |
| The outburst of the changing-look AGN IRAS 23226-3843 in 2019 W Kollatschny, D Grupe, ML Parker, MW Ochmann, N Schartel, ... Astronomy & Astrophysics 670, A103, 2023 | 6 | 2023 |
| Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 DW Xu, S Komossa, D Grupe, J Wang, LP Xin, XH Han, JY Wei, JY Bai, ... Universe 10 (2), 61, 2024 | 2 | 2024 |
| The Great Slump: Mrk 926 reveals discrete and varying Balmer line satellite components during a drastic phase of decline W Kollatschny, MW Ochmann, S Kaspi, C Schumacher, E Behar, ... Astronomy & Astrophysics 657, A122, 2022 | 2 | 2022 |
| Swift catches Changing Look AGN IRAS 23226-3843 in outburst D Grupe, S Komossa, N Schartel, M Parker, W Kollatschny, MW Ochmann, ... The Astronomer's Telegram 13182, 1, 2019 | 1 | 2019 |
| The transient event in NGC 1566 from 2017 to 2019. I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and OI lines MW Ochmann, W Kollatschny, MA Probst, E Romero-Colmenero, ... arXiv preprint arXiv:2402.12054, 2024 | | 2024 |
| Changing-look NLS1 galaxies, their detection with SVOM, and the case of NGC 1566 DW Xu, S Komossa, D Grupe, J Wang, LP Xin, XH Han, JY Wei, JY Bai, ... arXiv preprint arXiv:2401.10600, 2024 | | 2024 |
| The extreme X-ray weakness of PG 0043+ 039 N Schartel, L Ballo, W Kollatschny, M Ochmann, P Rodriguez, ... HST Proposal, 16899, 2021 | | 2021 |
| VizieR Online Data Catalog: Mrk 926 spectra (Kollatschny+, 2022) W Kollatschny, MW Ochmann, S Kaspi, C Schumacher, E Behar, ... VizieR Online Data Catalog, J/A+ A/657/A122, 2021 | | 2021 |
| A galaxy cluster in the innermost Zone of Avoidance, close to the radio phoenix VLSS J2217. 5+ 5943 W Kollatschny, H Meusinger, M Hoeft, GJ Hill, MW Ochmann, G Zeimann, ... Astronomy & Astrophysics 652, A24, 2021 | | 2021 |
| Shedding light on light echoes: mapping the accretion disk and broad line region in Mrk 279 D Chelouche, DV Bowen, M Haas, S Kaspi, W Kollatschny, M Ochmann HST Proposal, 16705, 2021 | | 2021 |
| VizieR Online Data Catalog: NGC 6240 MUSE observations (Kollatschny+, 2020) W Kollatschny, PM Weilbacher, MW Ochmann, D Chelouche, ... VizieR Online Data Catalog, J/A+ A/633/A79, 2019 | | 2019 |
Wolfram KollatschnyProfessor of Physics, Goettingen UniversityVerified email at astro.physik.uni-goettingen.de
