English

Magnetorotational supernovae with jets

Astrophysics 2007-05-23 v3

Abstract

We present results of 2D simulation of magnetorotational (MR) supernova accompanied by jet formation in the core collapse supernova explosion. Initial magnetic field used in the simulations has dipole-like symmetry. Contrary to the simulations of MR supernova with initial quadrupole-like magnetic field, where the matter was ejected mainly near the equatorial plane, in presence of the dipole-like initial magnetic field the supernova explosion is developing preferably along a rotational axis, and leads to formation of a protojet. We expect that protojet propagation through the envelope of the star will be accompanied by its collimation. The magnetorotational instability (MRI) was found in simulations, similar to the earlier considered case of the quadrupole-like initial magnetic field. Our estimations show that the characteristic time for the reconnection of the magnetic field is much larger than the MRI development time. The supernova explosion energy for the dipole-like field is about 0.6110510.61\cdot 10^{51}erg, and about 0.13M0.13M_\odot of mass was ejected during the explosion.

Keywords

Cite

@article{arxiv.astro-ph/0603789,
  title  = {Magnetorotational supernovae with jets},
  author = {S. G. Moiseenko and G. S. Bisnovatyi-Kogan and N. V. Ardeljan},
  journal= {arXiv preprint arXiv:astro-ph/0603789},
  year   = {2007}
}

Comments

13 pages, 22 figures, submitted to journal

R2 v1 2026-07-22T09:05:57.653Z