Today gets the hat-tip to Petrov: the most-recent of those supernovae which Wallner reported may, in fact, be neutronstar kilonova like GRB 2005221. See, as of the end of November and independent of Wallner 2023: Leonardo Chiesa, Albino Perego, Federico Maria Guercilena.
... with an unfortunate question-mark at the title's end. I can attest, chat; the arXiv might not be formal publication, but it remains not a Discord server.
The event is - here - constrained to 110-200 pc from us, 3.5-4.5 Mya. If you call that a constraint. What is left behind, in a kilonova?
Heavy elements do seem the province of neutron-stars more than of standard O-star (or even dwarf-star) blowups.
No comments:
Post a Comment