AT2018hyz
Event type | Tidal disruption event |
---|---|
Constellation | Sextans |
Right ascension | 10h 06m 50.871s |
Declination | +01° 34′ 34.08″[1] |
Distance | 665 million light years (204 Mpc)[1] |
Redshift | 0.04573[1] |
[edit on Wikidata] |
AT2018hyz is a tidal disruption event (TDE) that was discovered in 2018 by the All Sky Automated Survey for SuperNovae (ASASS-SN).[1]
History
In 2022, astronomers announced the discovery of radio emission from AT2018hyz using the Very Large Array (VLA), MeerKAT, and the Australia Telescope Compact Array (ATCA), despite no radio emission detected earlier.[2] The emission is still rising rapidly, and has been interpreted as an outflow of material that was "burped" several years after the initial TDE from the accretion disk of the supermassive black hole, traveling at up to half the speed of light.[3] Alternately, it has been proposed that the delayed radio emission from AT2018hyz could be due to an off-axis astrophysical jet, which launched promptly when the black hole was consumed (similar to the TDE Swift J1644+57), and emission only became visible later when it entered our line of sight.[4]
See also
- AT2019qiz
- RX J1242-11
References
- ^ a b c d "AT 2018hyz | Transient Name Server". www.wis-tns.org.
- ^ Cendes, Y.; Berger, E.; Alexander, K. D.; Gomez, S.; Hajela, A.; Chornock, R.; Laskar, T.; Margutti, R.; Metzger, B.; Bietenholz, M. F.; Brethauer, D.; Wieringa, M. H. (1 October 2022). "A Mildly Relativistic Outflow Launched Two Years after Disruption in Tidal Disruption Event AT2018hyz". The Astrophysical Journal. 938 (1): 28. arXiv:2206.14297. Bibcode:2022ApJ...938...28C. doi:10.3847/1538-4357/ac88d0.
- ^ "'We've Never Seen Anything Like This Before:' Black Hole Spews Out Material Years After Shredding Star | Center for Astrophysics | Harvard & Smithsonian". www.cfa.harvard.edu. Retrieved 7 May 2024.
- ^ Matsumoto, Tatsuya; Piran, Tsvi (2 May 2023). "Generalized equipartition method from an arbitrary viewing angle". Monthly Notices of the Royal Astronomical Society. 522 (3): 4565–4576. arXiv:2211.10051. doi:10.1093/mnras/stad1269.
- v
- t
- e
- « 20172019 »
launches
- TESS (lunar flyby; Apr 2018)
- Queqiao (mission to the Moon; May 2018)
- InSight / Mars Cube One (mission to Mars; May 2018)
- Parker Solar Probe (solar space mission; Aug 2018)
- BepiColombo (mission to Mercury; Oct 2018)
- Chang'e 4 / Yutu-2 (mission to the Moon; Dec 2018)
- LSPM J0207+3331
- VVV-WIT-07
- MACS J1149 Lensed Star 1
- 10 moons of Jupiter
- 541132 Leleākūhonua (announced)
- Hyperion proto-supercluster
- 2MASS J18082002−5104378
- Farout (2018 VG18)
- FarFarOut (2018 AG37 first imaged)
- AT2018hyz
- SN 2018cow
- V357 Muscae (Nova Muscae)
- V906 Carinae (Nova Carinae)
- V392 Persei (Nova Persei)
- C/2017 T1 (Heinze)
- C/2017 U7
- C/2018 C2 (Lemmon)
- 37P/Forbes
- 66P/du Toit
- 64P/Swift–Gehrels
- 38P/Stephan–Oterma
- C/2018 F4 (PanSTARRS)
- C/2018 V1 (Machholz-Fujikawa-Iwamoto)
- 46P/Wirtanen
- Hayabusa2 (asteroid Ryugu arrival; Jun 2018)
- Kepler retirement (Oct 2018)
- InSight (Mars landing; Oct 2018)
- Dawn retirement (Nov 2018)
- OSIRIS-REx (asteroid Bennu arrival; Dec 2018)
- Voyager 2 (enters interstellar space; Dec 2018)
- New Horizons (encounter with 486958 Arrokoth; Dec 2018 / Jan 2019)
- Outer space portal
- 2017 in outer space — 2018 in outer space — 2019 in outer space