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arXiv · 1910.04172

Coupling Neutrino Oscillations and Simulations of Core-Collapse Supernovae

Charles J. Stapleford·Carla Fröhlich·James P. Kneller
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Abstract

At the present time even the most sophisticated, multi-dimensional simulations of core-collapse supernovae do not (self-consistently) include neutrino flavor transformation. This physics is missing despite the importance of neutrinos in the core-collapse explosion paradigm. Because of this dependence, any flavor transformation that occurs in the region between the proto-neutron star and the shock could result in major effects upon the dynamics of the explosion. We present the first hydrodynamic core-collapse supernova simulation which simultaneously includes flavor transformation of the free-streaming neutrinos in the neutrino transport. These oscillation calculations are dynamically updated and evolve self-consistently alongside the hydrodynamics. Using a $M=20\;{\rm M_{\odot}}$ progenitor, we find that while the oscillations have an effect on the neutrino emission and the heating rates, flavor transformation alone does not lead to a successful explosion of this progenitor in spherical symmetry.

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Charles J. Stapleford, Carla Fröhlich, James P. Kneller. 2019-10-09. Coupling Neutrino Oscillations and Simulations of Core-Collapse Supernovae. https://doi.org/10.1103/physrevd.102.081301

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