AT2019qiz

AT2019qiz

Event type	Tidal disruption event
Constellation	Eridanus
Right ascension	04h 46m 37.88s [1]
Declination	−10° 13′ 34.90″ [1]
Distance	215 million light years (65 Mpc) [1]
Redshift	0.01513 [1]
Host	2MASX J04463790-1013349  [ arz ] [1]

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. Nicholl, M.; Wevers, T.; Oates, S. R.; Alexander, K. D.; Leloudas, G.; Onori, F.; Jerkstrand, A.; Gomez, S.; Campana, S.; Arcavi, I.; Charalampopoulos, P.; Gromadzki, M.; Ihanec, N.; Jonker, P. G.; Lawrence, A.; Mandel, I.; Schulze, S.; Short, P.; Burke, J.; McCully, C.; Hiramatsu, D.; Howell, D. A.; Pellegrino, C.; Abbot, H.; Anderson, J. P.; Berger, E.; Blanchard, P. K.; Cannizzaro, G.; Chen, T-W; Dennefeld, M. (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.