AT2019qiz is a tidal disruption event (TDE) that occurred at a distance of 215 millions light years (65 megaparsec), from Earth.[1] It is the nearest TDE discovered to date.[2] It was discovered in September 2019 by observations in ultraviolet, optical, X-ray and radio wavelengths made at the European Southern Observatory (ESO)[3] situated in Chile and was presented in October 2020 by research published in the monthly notices of the Royal Astronomical Society. It involves a star with a sun-like mass and a black hole with a mass of around 106 solar masses. The TDE appears very young and increasing in brightness. The encounter tore away half of the mass of the star and threw debris at a speed of 10,000 km/s, comparable to that observed in supernova explosions.[4][5]

References

  1. ↑ Nicholl, M.; Wevers, T.; Oates, S. R.; Alexander, K. D.; Leloudas, G.; Onori, F.; Jerkstrand, A.; Gomez, S.; Campana, S. (2020-09-14). "An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz". Monthly Notices of the Royal Astronomical Society. 499 (1): 482–504. arXiv:2006.02454. Bibcode:2020MNRAS.499..482N. doi:10.1093/mnras/staa2824. S2CID 219305100.
  2. ↑ Starr, Michelle (12 October 2020). "Witness The Very Last Scream of Light From a Star Devoured by a Black Hole". ScienceAlert. Retrieved 2020-10-13.
  3. ↑ "ESO telescopes record last moments of star devoured by a black hole". ScienceDaily. Retrieved 2020-10-13.
  4. ↑ "Death by Spaghettification: ESO Telescopes Record Last Moments of Star Devoured by a Black Hole". www.eso.org. European Southern Observatory. Retrieved 2020-10-13.
  5. ↑ Nicholl, M.; et al. (2020). "An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz". Monthly Notices of the Royal Astronomical Society. 499: 482–504. arXiv:2006.02454. doi:10.1093/mnras/staa2824.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.