On the Systematics of Core-Collapse Explosions

Details On the Systematics of Core-Collapse Explosions On the Systematics of Core-Collapse Explosions

1998-05-13

arxiv.org/abs/astro-ph/9805170v1

Astronomy and Astrophysics

Astrophysics

9 pages, LaTeX, no figures, to be published in the proceedings of the 9'th Workshop on Nuclear Astrophysics, held at the Ringb

Scientific paper

Recent observations of supernovae, supernova remnants, and radio pulsars suggest that there are correlations between pulsar kicks and spins, infrared and gamma-ray line profiles, supernova polarizations, and ejecta debris fields. A framework is emerging in which explosion asymmetries play a central role. The new perspective meshes recent multi-dimensional theoretical investigations of the explosion mechanism with trends in $^{56}$Ni yields and explosion kinetic energies. These trends imply that the mass above which black holes form after collapse is $\sim$30 M$_{\odot}$ and that supernova explosion energies may vary by as much as a factor of four. In addition, new neutrino-matter opacity calculations reveal that the inner cores of protoneutron stars are more transparent than hitherto suspected. This may have consequences for the delayed neutrino-driven mechanism of explosion itself.

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