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Core-collapse supernovae: magnetorotational mechanism

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The results of two-dimensional numerical simulations of the magnetorotational (MR) supernova mechanism are presented. The shape of the explosion qualitatively depends on the symmetry type of the initial magnetic field. For the initial quadrupole-type magnetic field, the MR supernova explosion develops mainly near the equatorial plane while, for the initial dipole magnetic field, the MR supernova explosion has the shape of a mildly collimated proto-jet. The ejected energy in the MR supernova explosion in our simulations was about (0.5-0.6) × 1051 erg. MR instability was found during simulations of the MR supernova explosion and leads to the exponential growth of both the toroidal and the poloidal magnetic fields.
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Keywords: Collapse; Hydrodynamic simulations; Magnetic fields; Neutron stars; Supernova

Document Type: Research Article

Affiliations: Space Research Institute, Moscow, Russia

Publication date: 2007-02-01

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