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Hall magnetic shocks in plasma current layers.

L I Rudakov1, J D Huba

  • 1Berkeley Research Scholars, Inc., Springfield, Virginia, USA.

Physical Review Letters
|August 23, 2002
PubMed
Summary

Localized thinning of reversed field current layers generates a nonlinear, shocklike structure. This self-supportive magnetic structure propagates and can release magnetic energy in the Hall limit.

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Area of Science:

  • Plasma physics
  • Magnetohydrodynamics

Background:

  • Reversed field current layers are crucial in plasma dynamics.
  • Understanding their behavior in the Hall limit is essential for magnetic energy release.

Purpose of the Study:

  • To investigate the dynamics of reversed field current layers in the Hall limit.
  • To analyze the generation and propagation of nonlinear structures within these layers.

Main Methods:

  • Analytical calculations.
  • Numerical simulations.

Main Results:

  • A rapid, localized thinning of the current layer was observed.
  • This thinning generates a nonlinear, shocklike structure.
  • The structure propagates in the B x Delta(n) direction and is self-supportive.

Conclusions:

  • The self-supportive magnetic structure leads to nonlocal thinning of the current layer.
  • This process facilitates the release of magnetic energy.

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