ASASSN-14li

Last updated
ASASSN-14li
ASASSN-14li with MUSE.png
VLT/MUSE image of the host galaxy, showing an EELR (blue: oxygen) [1]
Event type Tidal disruption event
DateNovember 2014
Constellation Coma Berenices
Distance290 Mly
Host PGC 43234
[ edit on Wikidata]

ASASSN-14li was a tidal disruption event that occurred when a moderately massive star of 3 solar masses and significant CNO processing was tidally disrupted by a supermassive black hole in a galaxy around 290 million light years from Earth. However it could have been a low mass star that has been stripped of its envelope. [2] If the star turns out to be around 3 solar masses, it would be one of the largest stars known to have experienced a tidal disruption event. [3]

The debris from the disrupted star showed relatively high amounts of nitrogen and carbon. [3] These elements were created during the tidal disruption event. [4]

In 2016, a team of researchers used VLT/MUSE to observe PGC 43234, the host galaxy of ASASSN-14li. The team discovered an extended emission-line region (EELR) around the galaxy. [5] Since this discovery it was found that TDEs frequently host EELRs. [1]

References

  1. 1 2 Pursiainen, M.; Leloudas, G.; Lyman, J.; Byrne, C. M.; Charalampopoulos, P.; Ramsden, P.; Kim, S.; Schulze, S.; Anderson, J. P.; Bauer, F. E.; Dai, L.; Galbany, L.; Kuncarayakti, H.; Nicholl, M.; Pessi, T.; Prieto, J. L.; Sanchez, S. F. (2025). "MUSEing on the host galaxies of Tidal Disruption Events". arXiv: 2507.12520 [astro-ph.HE].
  2. ↑ Miller, Jon M.; Mockler, Brenna; Ramirez-Ruiz, Enrico; Draghis, Paul A.; Drake, Jeremy J.; Raymond, John; Reynolds, Mark T.; Xiang, Xin; Yun, Sol Bin; Zoghbi, Abderahmen (2023-08-01). "Evidence of a Massive Stellar Disruption in the X-Ray Spectrum of ASASSN-14li". The Astrophysical Journal Letters. 953 (2): L23. arXiv: 2308.10964 . Bibcode:2023ApJ...953L..23M. doi: 10.3847/2041-8213/ace03c . ISSN   2041-8205.
  3. 1 2 "Chandra :: Photo Album :: ASASSN-14li :: August 22, 2023". chandra.harvard.edu. Retrieved 2025-04-14.
  4. ↑ "A Giant Black Hole Destroys a Massive Star - NASA". 2023-08-18. Retrieved 2025-04-14.
  5. ↑ Prieto, J. L.; Krühler, T.; Anderson, J. P.; Galbany, L.; Kochanek, C. S.; Aquino, E.; Brown, J. S.; Dong, Subo; Förster, F.; Holoien, T. W.-S.; Kuncarayakti, H.; Maureira, J. C.; Rosales-Ortega, F. F.; Sánchez, S. F.; Shappee, B. J. (October 2016). "MUSE Reveals a Recent Merger in the Post-starburst Host Galaxy of the TDE ASASSN-14li". The Astrophysical Journal. 830 (2): L32. arXiv: 1609.00013 . Bibcode:2016ApJ...830L..32P. doi: 10.3847/2041-8205/830/2/L32 . ISSN   0004-637X.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.