Physics – Nuclear Physics
Scientific paper
Jan 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000nupha.663..119j&link_type=abstract
Nuclear Physics A, Volume 663, p. 119-119.
Physics
Nuclear Physics
1
Scientific paper
Multi-dimensional hydrodynamic simulations of the post-bounce evolution of collapsed stellar iron cores have demonstrated that convective overturn between the stalled shock and the neutrinosphere can have an important effect on the neutrino-driven explosion mechanism. Whether a model yields a successful explosion or not, however, still depends on the power of neutrino energy deposition behind the stalled shock. The neutrino interaction with the stellar gas in the ``hot bubble'' also determines the duration of the shock stagnation phase, the explosion energy, and the composition of the neutrino-heated supernova ejecta. More accurate models require a more precise calculation of the neutrino luminosities and spectra and of the angular distributions of the neutrinos in the heating region. Therefore it is necessary to improve the numerical treatment of the neutrino transport, to take into account convective processes inside the newly formed neutron star, and to develop a better understanding of the neutrino opacities in hot and dense nuclear matter to be described consistently with the nuclear equation of state.
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