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arXiv · 1712.08253

Core-Collapse Supernova Simulations including Neutrino Interactions from the Virial EOS

Evan O'Connor·C. J. Horowitz·Zidu Lin·Sean Couch
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Abstract

Core-collapse supernova explosions are driven by a central engine that converts a small fraction of the gravitational binding energy released during core collapse to outgoing kinetic energy. The suspected mode for this energy conversion is the neutrino mechanism, where a fraction of the neutrinos emitted from the newly formed protoneutron star are absorbed by and heat the matter behind the supernova shock. Accurate neutrino-matter interaction terms are crucial for simulating these explosions. In this proceedings for IAUS 331, SN 1987A, 30 years later, we explore several corrections to the neutrino-nucleon scattering opacity and demonstrate the effect on the dynamics of the core-collapse supernova central engine via two dimensional neutrino-radiation-hydrodynamics simulations. Our results reveal that the explosion properties are sensitive to corrections to the neutral-current scattering cross section at the 10-20% level, but only for densities at or above $\sim 10^{12}$ g cm$^{-3}$

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Evan O'Connor, C. J. Horowitz, Zidu Lin, Sean Couch. 2017-12-21. Core-Collapse Supernova Simulations including Neutrino Interactions from the Virial EOS. https://doi.org/10.1017/s1743921317004586

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