• DOI:10.1051/0004-6361/202244623
• Corpus ID: 253910416

The rise and fall of the iron-strong nuclear transient PS16dtm

@article{Petrushevska2022TheRA,
  title={The rise and fall of the iron-strong nuclear transient PS16dtm},
  author={Tanja Petrushevska and Giorgos Leloudas and Dragana Ili{\'c} and M. G. Bronikowski and Panos Charalampopoulos and Gaurava K. Jaisawal and Emmy Paraskeva and Miika Pursiainen and Nemanja Raki{\'c} and S. Schulze and Kirsty Taggart and C. K. Wedderkopp and J. P. Anderson and Thomas J. L. de Boer and T. -W. Chen and G. Damljanovic and Morgan Fraser and Hong Gao},
  journal={Astronomy \& Astrophysics},
  year={2022}
}

• T. Petrushevska, G. Leloudas, +15 authors H. Gao
• Published 25 November 2022
• Physics
• Astronomy & Astrophysics

Context. Thanks to the advent of large-scale optical surveys, a diverse set of flares from the nuclear regions of galaxies has recently been discovered. These include the disruption of stars by supermassive black holes at the centers of galaxies - nuclear transients known as tidal disruption events (TDEs). Active galactic nuclei (AGN) can show extreme changes in the brightness and emission line intensities, often referred to as changing-look AGN (CLAGN). Given the physical and observational similarities, the interpretation and distinction of nuclear transients as CLAGN or TDEs remains di ffi cult. One of the obstacles of making progress in the field is the lack of well-sampled data of long-lived nuclear outbursts in AGN. Aims. Here, we study PS16dtm, a nuclear transient in a Narrow Line Seyfert 1 (NLSy1) galaxy, which has been proposed to be a