Instabilities and nonradial motion in SN 1987A

Details Instabilities and nonradial motion in SN 1987A Instabilities and nonradial motion in SN 1987A

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...341l..63a&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 341, June 15, 1989, p. L63-L66.

Astronomy and Astrophysics

Astrophysics

129

Shock Wave Propagation, Stellar Motions, Supernova 1987A, Gamma Rays, Magnetohydrodynamic Stability, Perturbation, Stellar Evolution, Stellar Structure, X Rays

Scientific paper

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'.

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