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astro-ph2004
Binary Merger Progenitors for Gamma-Ray Bursts and Hypernovae
Chris L. Fryer, Alexander Heger
The collapsar model, the now leading model for the engine behind gamma-ray bursts and hypernovae, requires that a star collapses to form a black hole surrounded by an accretion dis…
astro-ph2004
Presupernova Evolution of Differentially Rotating Massive Stars Including Magnetic Fields
A. Heger, S. E. Woosley, H. C. Spruit
As a massive star evolves through multiple stages of nuclear burning on its way to becoming a supernova, a complex, differentially rotating structure is set up. Angular momentum is…
astro-ph2004
Pulsational Analysis of the Cores of Massive Stars and its Relevance to Pulsar Kicks
Jeremiah Murphy, Adam Burrows, Alexander Heger
The mechanism responsible for the natal kicks of neutron stars continues to be a challenging problem. Indeed, many mechanisms have been suggested, and one hydrodynamic mechanism ma…