Modeling the Large Scale Structures of Astrophysical Jets in the Magnetically Dominated Limit

Details Modeling the Large Scale Structures of Astrophysical Jets in the Magnetically Dominated Limit Modeling the Large Scale Structures of Astrophysical Jets in the Magnetically Dominated Limit

2006-04-21

arxiv.org/abs/astro-ph/0604469v1

Astrophys.J. 643 (2006) 92-100

Astronomy and Astrophysics

Astrophysics

Accepted to ApJ, May 10, 2006 issue, 12 figures total (3 color figures)

Scientific paper

10.1086/501499

We suggest a new approach that could be used for modeling both the large scale behavior of astrophysical jets and the magnetically dominated explosions in astrophysics. We describe a method for modeling the injection of magnetic fields and their subsequent evolution in a regime where the free energy is magnetically dominated. The injected magnetic fields, along with their associated currents, have both poloidal and toroidal components, and they are not force free. The dynamic expansion driven by the Lorentz force of the injected fields is studied using 3-dimensional ideal magnetohydrodynamic simulations. The generic behavior of magnetic field expansion, the interactions with the background medium, and the dependence on various parameters are investigated.

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