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Semi-global simulations of the magneto-rotational instability in core collapse supernovae
M. Obergaulinger, P. Cerdà-Duràn, E. Müller +1
Possible effects of magnetic fields in core collapse supernovae rely on an efficient amplification of the weak pre-collapse fields. It has been suggested that the magneto-rotationa…
Kink instabilities in jets from rotating magnetic fields
R. Moll, H. C. Spruit, M. Obergaulinger
We have performed 2.5D and 3D simulations of conical jets driven by the rotation of an ordered, large-scale magnetic field in a stratified atmosphere. The simulations cover about t…
Relativistic Outflows in Gamma-Ray Bursts
M. A. Aloy, M. Obergaulinger
The possibility that gamma-ray bursts (GRBs) were not isotropic emissions was devised theoretically as a way to ameliorate the huge energetic budget implied by the standard firebal…
Axisymmetric simulations of magnetorotational core collapse: Approximate inclusion of general relativistic effects
M. Obergaulinger, M. A. Aloy, H. Dimmelmeier +1
We continue our investigations of the magnetorotational collapse of stellar cores discussing simulations performed with a modified Newtonian gravitational potential that mimics gen…
Axisymmetric simulations of magneto--rotational core collapse: dynamics and gravitational wave signal
M. Obergaulinger, M. A. Aloy, E. Mueller
We have performed a comprehensive parameter study of the collapse of rotating, strongly magnetized stellar cores in axisymmetry to determine their gravitational wave signature base…