Rayleigh-Taylor instability in the asymmetric supernova explosion

Shoichi Yamada; Katsuhiko Sato

doi:10.1086/170746

Rayleigh-Taylor instability in the asymmetric supernova explosion

Shoichi Yamada^*, Katsuhiko Sato

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

We studied matter mixing by Rayleigh-Taylor instability in the jetlike supernova explosion by numerical calculations of two-dimensional hydrodynamics. We found that (1) the asymmetric explosion with 5% initial perturbation causes the same degree of matter mixing as the spherical one with 30% perturbation, and that (2) 30% initial perturbation in the jetlike explosion is sufficient to explain the mixing in SN 1987A suggested by many observations without any subsequent instability such as nickel bubble formation.

Original language	English
Pages (from-to)	594-602
Number of pages	9
Journal	Astrophysical Journal
Volume	382
Issue number	2
DOIs	https://doi.org/10.1086/170746
Publication status	Published - 1991 Dec 1
Externally published	Yes

Keywords

Hydrodynamics
Stars: individual (SN 1987A)
Stars: interiors
Stars: supernovae

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/170746

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AU - Sato, Katsuhiko

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N2 - We studied matter mixing by Rayleigh-Taylor instability in the jetlike supernova explosion by numerical calculations of two-dimensional hydrodynamics. We found that (1) the asymmetric explosion with 5% initial perturbation causes the same degree of matter mixing as the spherical one with 30% perturbation, and that (2) 30% initial perturbation in the jetlike explosion is sufficient to explain the mixing in SN 1987A suggested by many observations without any subsequent instability such as nickel bubble formation.

AB - We studied matter mixing by Rayleigh-Taylor instability in the jetlike supernova explosion by numerical calculations of two-dimensional hydrodynamics. We found that (1) the asymmetric explosion with 5% initial perturbation causes the same degree of matter mixing as the spherical one with 30% perturbation, and that (2) 30% initial perturbation in the jetlike explosion is sufficient to explain the mixing in SN 1987A suggested by many observations without any subsequent instability such as nickel bubble formation.

KW - Hydrodynamics

KW - Stars: individual (SN 1987A)

KW - Stars: interiors

KW - Stars: supernovae

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JF - Astrophysical Journal

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ER -

Rayleigh-Taylor instability in the asymmetric supernova explosion

Abstract

Keywords

ASJC Scopus subject areas

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