New Insights into Core-Collapse Supernova Theory

Details New Insights into Core-Collapse Supernova Theory New Insights into Core-Collapse Supernova Theory

1997-06-14

arxiv.org/abs/astro-ph/9706137v1

Astronomy and Astrophysics

Astrophysics

13 pages, LaTex, 5 figures, to be published in the proceedings of the 5'th CTIO/ESO/LCO Workshop ``SN1987A: Ten Years Later,''

Scientific paper

Though it is agreed that the post-bounce, pre-explosion cores of massive stars are unstable to transonic, Rayleigh-Taylor-like instabilities, the role convective motions may play in igniting the supernova explosion itself is not yet clear. Whatever that role, the morphology and nucleosynthetic yields of the explosion, the recoil of the protoneutron star, the spatial distribution of fresh $^{56}$Ni, and the gravitational wave and neutrino signatures of the event will be affected in interesting ways. I review a subset of the issues raised by the new paradigm and some of the technical obstacles that remain. I focus on neutrino transfer, the role of progenitor structure, kick mechanisms, and the location and potential consequence of various hydrodynamic instabilities.

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