ASASSN-14li
 VLT/MUSE image of the host galaxy, showing an EELR (blue: oxygen)[1] | |
| Event type | Tidal disruption event |
|---|---|
| Date | November 2014 |
| Constellation | Coma Berenices |
| Distance | 290 Mly |
| Host | PGC 43234 |
| Other designations | Lua error in Module:Wikidata at line 448: attempt to index field 'wikibase' (a nil value). |
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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
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