Standing accretion shock instability: Numerical simulations of core-collapse supernova

N. Ohnishi; W. Iwakami; K. Kotake; S. Yamada; S. Fujioka; H. Takabe

doi:10.1088/1742-6596/112/4/042018

Standing accretion shock instability: Numerical simulations of core-collapse supernova

N. Ohnishi, W. Iwakami, K. Kotake, S. Yamada, S. Fujioka, H. Takabe

School of Advanced Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

Standing accretion shock instability (SASI) is one of the candidates to solve the mystery of why we cannot reproduce the explosion with the present core-collapse supernova models. We have studied this phenomenon with including neutrino heating and realistic EOS and found that SASI may enhance neutrino heating. Although g-mode of proto-neutron star may enhance the SASI growth, the simulations just including the pressure perturbation as a mimic of g-mode induced sound wave reveal no significant effect on the shock dynamics. Moreover, we discuss the required conditions toward the possible laboratory experiment of SASI.

Original language	English
Article number	042018
Journal	Journal of Physics: Conference Series
Volume	112
Issue number	Part 4
DOIs	https://doi.org/10.1088/1742-6596/112/4/042018
Publication status	Published - 2008 Jun 12
Event	5th International Conference on Inertial Fusion Sciences and Applications, IFSA 2007 - Kobe, Japan Duration: 2007 Sep 9 → 2007 Sep 14

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Standing accretion shock instability: Numerical simulations of core-collapse supernova",

abstract = "Standing accretion shock instability (SASI) is one of the candidates to solve the mystery of why we cannot reproduce the explosion with the present core-collapse supernova models. We have studied this phenomenon with including neutrino heating and realistic EOS and found that SASI may enhance neutrino heating. Although g-mode of proto-neutron star may enhance the SASI growth, the simulations just including the pressure perturbation as a mimic of g-mode induced sound wave reveal no significant effect on the shock dynamics. Moreover, we discuss the required conditions toward the possible laboratory experiment of SASI.",

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T1 - Standing accretion shock instability

T2 - 5th International Conference on Inertial Fusion Sciences and Applications, IFSA 2007

AU - Ohnishi, N.

AU - Iwakami, W.

AU - Kotake, K.

AU - Yamada, S.

AU - Fujioka, S.

AU - Takabe, H.

PY - 2008/6/12

Y1 - 2008/6/12

N2 - Standing accretion shock instability (SASI) is one of the candidates to solve the mystery of why we cannot reproduce the explosion with the present core-collapse supernova models. We have studied this phenomenon with including neutrino heating and realistic EOS and found that SASI may enhance neutrino heating. Although g-mode of proto-neutron star may enhance the SASI growth, the simulations just including the pressure perturbation as a mimic of g-mode induced sound wave reveal no significant effect on the shock dynamics. Moreover, we discuss the required conditions toward the possible laboratory experiment of SASI.

AB - Standing accretion shock instability (SASI) is one of the candidates to solve the mystery of why we cannot reproduce the explosion with the present core-collapse supernova models. We have studied this phenomenon with including neutrino heating and realistic EOS and found that SASI may enhance neutrino heating. Although g-mode of proto-neutron star may enhance the SASI growth, the simulations just including the pressure perturbation as a mimic of g-mode induced sound wave reveal no significant effect on the shock dynamics. Moreover, we discuss the required conditions toward the possible laboratory experiment of SASI.

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