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Effects of Angular Momentum on Supernova Explosion and Stability of Rapidly Rotating Stellar Cores

Published online by Cambridge University Press:  30 March 2016

Katsuhiko Sato  and
Masayoshi kiguchi
Katsuhiko Sato
Affiliation:
Department of Physics, Faculty of Science, The University of Tokyo, Tokyo 113Japan
Masayoshi kiguchi
Affiliation:
Institute of Science and Technology, Kinki University, Higashi Osaka 577Japan

Abstract

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We discuss effects of angular momentum on gravitational collapse and the fate of rapidly rotating stellar cores just before the gravitational collapse. It is found that Stellar cores become dynamically unstable against the modes of P0 and/or P2± 2 before the central densities become higher than the neutron drip density(˜ 4.3×1011 g/cm3). this suggests that fission occurs at pre-supernova stage or in the collapsing stage. In order to make clear whether these dynamical instabilities induce supernova explosion or not, three dimensional hydrodynamic computation would be necessary.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 7: Highlights of Astronomy. As presented at the XIXth General Assembly of the IAU, 1985 , 1986 , pp. 635 - 639
Copyright
Copyright © Reidel 1986

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