What powers core-collapse supernovae?

Physics – Nuclear Physics

Scientific paper

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Supernovae, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

Supernovae are one of nature's most energetic ``cosmic explosions''. But do we know how they work? Models based on the neutrino-driven mechanism have become increasingly sophisticated over the past 3 decades, and this mechanism still remains the leading explanation of the engine that drives supernovae. The leading alternate mechanism invokes magnetic fields. Unfortunately, energy constraints rule out this mechanism for the bulk of supernovae unless the current stellar progenitors are incorrect. Comparing these two mechanisms provides insight into the engines that power gamma-ray bursts (GRBs). The different geometry in black hole accretion disk GRB models allows many mechanisms which failed in core-collapse supernovae to work for GRBs. .

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