Nonlinear magnetic reconnection with collisionless dissipation

DOI PDF 被引用文献2件
  • G. E. Vekstein
    Department of Physics, UMIST, P. O. Box 88, Manchester, M60 1QD, England, United Kingdom
  • E. R. Priest
    University of St. Andrews, KY16 9SS, Scotland, United Kingdom

書誌事項

公開日
1995-08-01
DOI
  • 10.1063/1.871149
公開者
AIP Publishing

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説明

<jats:p>An analytical model of two-dimensional collisionless reconnection in an X-type magnetic geometry is presented. The conversion of magnetic energy to the kinetic energy of accelerated ions takes place in the vicinity of the neutral line. The structure of this dissipation region and the magnetic energy release rate have been investigated both for linear and nonlinear regimes of collisionless reconnection. A simple model of global reconnection flow has been constructed, assuming an incompressible ideal magnetohydrodynamics approximation outside the dissipation region. The corresponding scaling for the external Mach number (Me) is found, which predicts a maximum reconnection rate Me=1/2R̃m −1/2, where R̃m≊(Le/λi)2≫1 is the effective magnetic Reynolds number for collisionless reconnection (Le is the global size of the system and λi is the ion inertial skin depth).</jats:p>

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