The superluminous transient ASASSN-15lh as a tidal disruption event from a Kerr black hole

@article{Leloudas2017TheST,
  title={The superluminous transient ASASSN-15lh as a tidal disruption event from a Kerr black hole},
  author={Giorgos Leloudas and Morgan Fraser and Nicholas Chamberlain Stone and Sjoert van Velzen and Peter G. Jonker and Iair Arcavi and Christoffer U. Fremling and Justyn R. Maund and Steven J. Smartt and Thomas Kruhler and James C. A. Miller-Jones and Paul M. Vreeswijk and Avishay Gal-Yam and P. A. Mazzali and Annalisa De Cia and D. Andrew Howell and Cosimo Inserra and Ferdinando Patat and A. de Ugarte Postigo and Ofer Yaron and Chris Ashall and I. Bar and Heather C. Campbell and T.-W. Chen and Michael J. Childress and N. Elias-rosa and Jussi Harmanen and Griffin Hosseinzadeh and Joel Johansson and T Kangas and E. Kankare and S-W. Kim and Hanindyo Kuncarayakti and Joseph D. Lyman and M R Magee and Kate Maguire and D. B. Malesani and Seppo Mattila and Curtis McCully and Matt Nicholl and S. J. Prentice and C. Romero-Ca{\~n}izales and Steve Schulze and K. W. Smith and Jesper Sollerman and M. Sullivan and Brad E. Tucker and Stefano Valenti and J. Craig Wheeler and David R. Young},
  journal={Nature Astronomy},
  year={2017},
  volume={1},
  pages={1-8}
}
When a star passes within the tidal radius of a supermassive black hole, it will be torn apart1. For a star with the mass of the Sun (M ⊙) and a non-spinning black hole with a mass 108 M ⊙ 12,13, a star with the same mass as the Sun could be disrupted outside the event horizon if the black hole were spinning rapidly14. The rapid spin and high black hole mass can explain the high luminosity of this event. 

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