• DOI:10.1093/mnras/stad725
• Corpus ID: 257501981

Multiple flares in the changing-look AGN NGC 5273

@article{Neustadt2022MultipleFI,
  title={Multiple flares in the changing-look AGN NGC 5273},
  author={Jack M. M. Neustadt and Jason T. Hinkle and Christopher S. Kochanek and Mark T. Reynolds and Smita Mathur and Michael A. Tucker and Richard W. Pogge and Krzysztof Zbigniew Stanek and Anna V. Payne and Benjamin. J. Shappee and Thomas W.-S. Holoien and Katie Auchettl and Chris Ashall and T. deJaeger and D. D. Desai and Aaron Do and W. B. Hoogendam and Mark E. Huber},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2022}
}

• J. Neustadt, J. Hinkle, +15 authors M. Huber
• Published 7 November 2022
• Physics
• Monthly Notices of the Royal Astronomical Society

NGC 5273 is a known optical and X-ray variable AGN. We analyze new and archival IR, optical, UV, and X-ray data in order to characterize its long-term variability from 2000 to 2022. At least one optical changing-look event occurred between 2011 and 2014, when the AGN changed from a Type 1.8/1.9 Seyfert to a Type 1. It then faded considerably at all wavelengths, followed by a dramatic but slow increase in UV/optical brightness between 2021 and 2022. Near-IR (NIR) spectra in 2022 show prominent…