Global mixing in SN 1987A by the asymmetric shock wave

Shoichi Yamada*, Katsuhiko Sato


研究成果: Article査読

11 被引用数 (Scopus)


The possibility of global mixing of matter by the nonspherical shock wave in the supernova explosion was investigated by the two-dimensional axial symmetric hydrodynamical simulation. We found that (1) the asymmetric shock wave is generated by passing through the flattened core induced by stellar rotation, (2) inner matter tends to move toward the symmetric axis, and global matter mixing is possible if the degree of the deformation of the core is large, since this asymmetry of shock is not dumped even if the outer envelope is almost spherically symmetric. We also found that if the initial shock is jetlike, this tendency is strengthened more. This asymmetric shock wave also may explain the nonspherically expanding envelope in SN 1987A suggested by the speckle and polarization observations.

ジャーナルAstrophysical Journal
1 PART 2
出版ステータスPublished - 1990 7月 20

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学


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