Non-Axisymmetric Instabilities in Core-Collapse Supernovae

Details Non-Axisymmetric Instabilities in Core-Collapse Supernovae Non-Axisymmetric Instabilities in Core-Collapse Supernovae

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..352..221a&link_type=abstract

New Horizons in Astronomy: Frank N. Bash Symposium ASP Conference Series, Vol. 352, Proceedings of the Conference Held 16-18 Oct

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Observations indicate that core-collapse supernova explosions are axisymmetric and bipolar in nature. A rotating core would easily give such a preferred axis of symmetry; at the same time subsequent differential rotation becomes an energy source from which magnetic fields can be amplified. A rapidly and differentially rotating core can also be unstable to non-axisymmetric instabilities, generating MHD waves that propagate through the accreting mantle. We discuss the possible effects of the rotational instabilities in the core on the mantle and the core itself.

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