Magnetorotational supernovae

Details Magnetorotational supernovae Magnetorotational supernovae

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..937..275m&link_type=abstract

SUPERNOVA 1987A: 20 YEARS AFTER: Supernovae and Gamma-Ray Bursters. AIP Conference Proceedings, Volume 937, pp. 275-279 (2007).

Computer Science

1

Supernovae, Magnetohydrodynamics And Plasmas, Supernova Remnants

Scientific paper

We present results of 2D MHD simulations of magnetorotational (MR) supernova explosion. Differential rotation of the magnetized collapsed core leads to formation of the toroidal component of magnetic field. The toroidal field amplifies with time. Magneto Rotational Instability (MRI) was found in our simulation. MRI leads to the exponential growth of both toroidal and poloidal components of the magnetic field. Initial configuration of the poloidal magnetic field qualitatively defines the shape of the supernova explosion. Initial quadrupole-like magnetic field leads to the explosion mainly near the equatorial plane. The explosion energy in our simulations was ~0.5-0.6.1051 erg. Initial dipole-like magnetic field results in the mildly collimated axial jet. Magnetorotational mechanism of supernova explosion can explain asymmetry of the explosion to the equatorial plane.

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