According to the current standard picture supernova explosions of evolved massive stars are mediated by the deposition of neutrino energy in the stellar medium. Detailed numerical simulations, however, have so far not been able to demonstrate the viability of this mechanism convincingly. The aim of this thesis was to overcome a fundamental deficiency inherent to current supernova models namely the treatment of the neutrino transport. Using a newly developed numerical method based on the Boltzmann transport equation the transport and interaction of neutrinos in the dense medium of the nascent neutron star could be computed with high accuracy. Compared to previous models enhanced neutrino energy deposition was found in our supernova simulation. This, however, turns out to be not sufficient to cause healthy supernova explosions in spherically symmetric models, which underlines the importance of convective phenomena in the early phases of a supernova.
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According to the current standard picture supernova explosions of evolved massive stars are mediated by the deposition of neutrino energy in the stellar medium. Detailed numerical simulations, however, have so far not been able to demonstrate the viability of this mechanism convincingly. The aim of this thesis was to overcome a fundamental deficiency inherent to current supernova models namely the treatment of the neutrino transport. Using a newly developed numerical method based on the Boltzman...
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