Evidence for topological nonequilibrium in magnetic configurations

Details Evidence for topological nonequilibrium in magnetic configurations Evidence for topological nonequilibrium in magnetic configurations

2000-03-18

arxiv.org/abs/astro-ph/0003274v1

Astronomy and Astrophysics

Astrophysics

10 pages, 5 figures

Scientific paper

10.1103/PhysRevE.62.1245

We use direct numerical simulations to study the evolution, or relaxation, of magnetic configurations to an equilibrium state. We use the full single-fluid equations of motion for a magnetized, non-resistive, but viscous fluid; and a Lagrangian approach is used to obtain exact solutions for the magnetic field. As a result, the topology of the magnetic field remains unchanged, which makes it possible to study the case of topological nonequilibrium. We find two cases for which such nonequilibrium appears, indicating that these configurations may develop singular current sheets.

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