Supernova neutrinos

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Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...334..891b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 334, Nov. 15, 1988, p. 891-908. Research supported by the Alfred P. Sloan F

Astronomy and Astrophysics

Astronomy

123

Black Holes (Astronomy), Neutrinos, Stellar Evolution, Stellar Interiors, Supernova 1987A, Cerenkov Counters, Early Stars, Gravitational Collapse, Neutron Stars

Scientific paper

The author presents the results of a new series of general relativistic stellar evolution calculations of the first 20 s in the lives of young neutron stars born in Type II supernovae. The model grid covers a wide range of masses and accretion rates. The focus of this study is on the brief, but impressive neutrino emissions from these protoneutron stars as they neutronize and cool. For each of these models, the theoretical neutrino burst signatures of SN 1987A in both the Kamiokande II and IMB water Cerenkov detectors are calculated and compared with observed data. It is concluded that the new neutron star in LMC has a baryon mass between 1.2 and 1.7 M_sun; and a best-fit gravitational mass between 1.3 and 1.5 M_sun;. Simulations of stellar mass black hole formation by accretion onto protoneutron star intermediaries are also presented. The distinctive neutrino signature of such events is discussed.

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