Nonlinear growth of Rayleigh-Taylor instabilities and mixing in SN 1987A

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185779· OSTI ID:6593035

Hachisu, Izumi; Matsuda, Takuya; Nomoto, Kenichi; Shigeyama, Toshikazu ^[1]

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1. Kyoto Univ. (Japan) Tokyo Univ. (Japan)

The origin and development of the Rayleigh-Taylor (R-T) instability is studied using an axisymmetric two-dimensional hydrodynamic code. It is observed that mushroomlike structures appear 2000 s after the blast shock and the R-T instability starts to grow at the H/He interface. These results correlate well with the Arnett et al. (1989) data. The extent of mixing in the ejecta of SN 1987A and the relation between R-T instability and mixing are examined. 36 refs.

• OSTI ID: 6593035
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 358; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL COMPOSITION
EMISSION SPECTRA
ERUPTIVE VARIABLE STARS
FLUID MECHANICS
GALAXIES
HYDRODYNAMICS
INSTABILITY
MAGELLANIC CLOUDS
MAGNETOHYDRODYNAMICS
MASS TRANSFER
MATHEMATICAL MODELS
MECHANICS
MIXING
NONLINEAR PROBLEMS
ORIGIN
RAYLEIGH-TAYLOR INSTABILITY
SHOCK WAVES
SPECTRA
STABILITY
STAR MODELS
STARS
SUPERNOVAE
TWO-DIMENSIONAL CALCULATIONS
VARIABLE STARS