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Title:
Analysis of the neutrino burst from supernova 1987A in the Large Magellanic Cloud
Authors:
Sato, Katsuhiko; Suzuki, Hideyuki
Affiliation:
AA(Tokyo, University, Japan), AB(Tokyo, University, Japan)
Publication:
Physical Review Letters (ISSN 0031-9007), vol. 58, June 22, 1987, p. 2722-2725. (PhRvL Homepage)
Publication Date:
06/1987
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
NEUTRINOS, STELLAR EVOLUTION, STELLAR RADIATION, SUPERNOVA 1987A, BURSTS, GRAVITATIONAL COLLAPSE, MAGELLANIC CLOUDS, PARTICLE ENERGY
DOI:
10.1103/PhysRevLett.58.2722
Bibliographic Code:
1987PhRvL..58.2722S

Abstract

The authors analyze the neutrino burst from the supernova 1987A detected by the Kamiokande II collaboration, and obtain the following results. (1) The total energy of antineutrinos is about 4.8×1052ergs, which is consistent with theoretical predictions. If one takes the simulation of Wilson and collaborators as the theoretical model, it corresponds to the models with the progenitor mass 15 M_sun;. (2) The first two neutrino events cannot correspond to the predicted initial neutronization burst from the energetics and the duration time. (3) The duration time of the burst suggests that the electron-neutrino mass <26 eV. The authors also discuss implications on the explosion mechanism of the supernova.
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