Instabilities and nonradial motion in SN 1987A

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185458· OSTI ID:5509736

Arnett, D; Fryxell, B; Mueller, E ^[1]

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1. Arizona Univ., Tucson (USA)

Detailed numerical calculations of relatively high resolution are reported which show that shock propagation through realistic presupernova structrue results in a pronounced Rayleigh-Taylor instability. Processed matter is found to penetrate near to the H-He interface after only 10,000 seconds, well before significant decay of Ni-56. Pronounced fingers forming in density, though not in temperature, are also found. Such behavior has profound implications for line formation, polarimetry, and X-ray and gamma-ray emission from SN 1987A and for subsequent development of the Ni-Co bubble. 38 refs.

• OSTI ID: 5509736
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 341; 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
ELECTROMAGNETIC RADIATION
ERUPTIVE VARIABLE STARS
FLUID MECHANICS
GAMMA RADIATION
HYDRODYNAMICS
INSTABILITY
IONIZING RADIATIONS
MAGNETOHYDRODYNAMICS
MECHANICS
MORPHOLOGY
MOTION
NUMERICAL SOLUTION
PERTURBATION THEORY
RADIATIONS
RAYLEIGH-TAYLOR INSTABILITY
SHOCK WAVES
STABILITY
STAR EVOLUTION
STARS
SUPERNOVAE
VARIABLE STARS
WAVE PROPAGATION
X RADIATION