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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…
Search for fast correlated X-ray and optical variability in Cir X-1 and XTE J1746-321
H. C. Spruit, H. Steinle, G. Kanbach
Coordinated observations X-ray+optical observations of two southern X-ray binaries, the black hole candidate XTE J1746-321 and the neutron star accreter Cir X-1 (a `microquasar') a…
Local Axisymmetric Diffusive Stability of Weakly-Magnetized, Differentially-Rotating, Stratified Fluids
Kristen Menou, Steven A. Balbus, Henk C. Spruit
We study the local stability of stratified, differentially-rotating fluids to axisymmetric perturbations in the presence of a weak magnetic field and of finite resistivity, viscosi…