Astronomy:AT 2019qiz

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Short description: Tidal distribution event
AT 2019qiz
Event typeTidal disruption event
ConstellationEridanus
Right ascension 04h 46m 37.88s[1]
Declination−10° 13′ 34.90″[1]
Distance215 million light years (65 Mpc)[1]
Redshift0.01513[1]
Host2MASX J04463790-1013349 (arz)[1]
[edit on Wikidata]

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][1]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Nicholl, M.; Wevers, T.; Oates, S. R.; Alexander, K. D.; Leloudas, G.; Onori, F.; Jerkstrand, A.; Gomez, S. et al. (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. doi:10.1093/mnras/staa2824. Bibcode: 2020MNRAS.499..482N. 
  2. ↑ Starr, Michelle (12 October 2020). "Witness The Very Last Scream of Light From a Star Devoured by a Black Hole" (in en-gb). https://www.sciencealert.com/astronomers-caught-the-last-scream-of-light-from-a-star-devoured-by-a-black-hole. 
  3. ↑ "ESO telescopes record last moments of star devoured by a black hole" (in en). https://www.sciencedaily.com/releases/2020/10/201012115956.htm. 
  4. ↑ "Death by Spaghettification: ESO Telescopes Record Last Moments of Star Devoured by a Black Hole". European Southern Observatory. https://www.eso.org/public/news/eso2018/. 



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