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

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

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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 ∼1012 g cm-3.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalProceedings of the International Astronomical Union
Volume12
Issue numberS331
DOIs
StatePublished - 1 Feb 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© Copyright International Astronomical Union 2017.

Keywords

  • (stars:) supernovae: general
  • hydrodynamics
  • methods: numerical
  • neutrinos
  • radiative transfer
  • scattering
  • stars: neutron

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