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Magnetic field-line reconnexion by localized enhancement of resistivity: Part 1. Evolution in a compressible MHD fluid

  • Masayuki Ugai (a1) and Takao Tsuda (a2)
Abstract

The temporal dynamics of field-line reconnexion is studied by numerical experiment in a compressible conducting fluid. It is shown that because of localized enhancement of resistivity the reconnexion takes place in an initially antiparallel magnetic field and that an X-type field configuration develops, occupying an extended region. There is also a remarkable release of magnetic energy into kinetic and thermal energies. The global flow pattern can spontaneously be set up through the field-line reconnexion under no specially imposed boundary conditions.

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W. I. Axford , H. E. Petschek & G. L. Siscoe 1965 J. Geophys. Res. 70, 1231.

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J. W. Dungey 1953 Phil. Mag. 44, 725.

E. N. Parker 1963 Astrophys. J. Suppl. 8, 177.

D. P. Stern 1966 Space Sci. Rev. 6, 147.

V. M. Vasyliunas 1975 Rev. Geophys. Space Phys. 13, 303.

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Journal of Plasma Physics
  • ISSN: 0022-3778
  • EISSN: 1469-7807
  • URL: /core/journals/journal-of-plasma-physics
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