Neutrinos from supernova 1987A

Physics

Scientific paper

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Gravitational Collapse, Neutrinos, Neutron Stars, Stellar Evolution, Supernova 1987A, Antineutrinos, Light Curve, Particle Emission

Scientific paper

Observations of neutrinos emitted from SN 1987A, which were obtained in Japan and Ohio, are discussed. The discovery of neutrinos, the basic physics of neutrino, and the processes of stellar evolution and collapse, are reviewed. The agreement between the observations and theoretical predictions are examined. It was found that the total energy of the event was in the range 2-3 X 10 to the 53rd ergs. The thermal history and 'light curve' of a cooling neutron star, and the neutrino signal of SN 1987A are depicted in graphs. The events inside a massive star which lead to the creation of a neutron star are illustrated and the possibility of future observations is considered.

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