May a supernova bang twice?

Details May a supernova bang twice? May a supernova bang twice?

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..193..514d&link_type=abstract

Physics Letters B, Volume 193, Issue 4, p. 514-524.

Physics

52

Scientific paper

The Mont Blanc group reports a burst of neutrinos in the LSD detector occuring the day before the optical discovery of SN1987A. The Kamiokande (K2) and IMB experiments see neutrino bursts ~4 h 43 min after LSD. The K2 observations at LSD time here said to contradict LSD. I argue that the K2 results strongly support the LSD pulse(!). I critically analyse the data, and prove that all experiments are compatible at all times. I discuss the plausibility and predictive power of a two-neutrino-burst scenario, wherein the progenitor's core first became a neutron star, and subsequently recollapsed into a black hole (or strange star) as matter left behind by a partially failed shock wave accreted on and around the neutron star, with a calculated fall-back time of a few hours

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