Neutrino flavor conversion in supernova 1987A

By using detailed models of the progenitor we show that the non-adiabatic solution of the solar-neutrino problem by the Mikheyev-Smirnov-Wolfenstein mechanism is compatible with the possible observation of neutronization ν/sub e/ from SN 1987A in its wide range of the mixing parameters at Δm2approx. >10/sup -6/ eV2. We also argue that, under the assumption of hierarchy of neutrino masses, our consistency solution favors the ν/sub e/--heaviest-flavor-neutrino mixing as the cause of the solar-neutrino deficit