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Paper: A New Two-moment Scheme with Algebraic Closure for Energy-dependent Multi-flavor Neutrino Transport in Supernovae
Volume: 488, 8th International Conference of Numerical Modeling of Space Plasma Flows (ASTRONUM 2013)
Page: 255
Authors: Obergaulinger, M.; Just, O.; Janka, H.-T.; Aloy, M. A.; Aloy, C.
Abstract: We present our code coupling neutrino transport and magneto-hydrodynamics. Neutrino transfer is solved in the two-moment approach using a local algebraic closure that yields a hyperbolic system of equations. The code is intended to be applied to a broad range of astrophysical applications, among which the most relevant one is the study of the highly dynamic phases of supernovae. We have validated the coupled code by running a number of test problems, and fundamentally, by comparing the results of the approximate neutrino transport to state-of-the-art Boltzmann solvers, finding an extremely good performance. We also show here a first application to stellar core collapse.
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