Nonlinear evolution of Tayler unstable equilibrium states

Details Nonlinear evolution of Tayler unstable equilibrium states Nonlinear evolution of Tayler unstable equilibrium states

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008an....329..717e&link_type=abstract

Astronomische Nachrichten, Vol.329, Issue 7, p.717-721

Astronomy and Astrophysics

Astronomy

3

Physical Data And Processes, Galaxies, Magnetohydrodynamics

Scientific paper

We investigate the nonlinear evolution of Tayler unstable toroidal fields in a disk geometry, by numerical simulations. We consider non-rotating and rigid rotating disks, with different radial field profiles. The initial configuration is in equilibrium, which is achieved by a pressure gradient or an external potential force. The nonlinear evolution of the system leads to a stable equilibrium with a current free toroidal field. Only for the fast rotating case we could preserve a ring type structure of the toroidal field.

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