Candidate optical counterpart for extragalactic neutrino event

American Association of Variable Star Observers (AAVSO)
Fri, 10/20/2023 - 22:21

There is a possible optical counterpart (a supernova of type Ibn) that seems consistent with a neutrino event.


Unfortunately the SN is quite dim  (ca 20 mag in V and R ) and fading already, so amateur observations will be difficult except for those with really huge scopes....but it might be interesting to follow events.

Here is the link to the search for related GCN circulars:


With so-and-many neutrino events happening and so-and-so-many SNs being discovered, there have to be candidate matches from time to time I guess, and it will be interesting to see what can be done to make or break the case for a causal link. Especially since this SN is not exactly around the corner (redshift 0.15)



P.S.: Thanks to Sarah Antier from GRANDMA for bringing this to the attention af amateurs