Merging instability of magnetic islands

Details Merging instability of magnetic islands Merging instability of magnetic islands

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.251..109t&link_type=abstract

In ESA Proceedings of the Joint Varenna-Abastumani International School and Workshop on Plasma Astrophysics p 109-111 (SEE N87-

Astronomy and Astrophysics

Astrophysics

1

Kinetic Theory, Magnetic Field Configurations, Magnetohydrodynamic Stability, Tearing Modes (Plasmas), Collisionless Plasmas, Plasma Currents, Plasma Layers

Scientific paper

Linear collisionless kinetic theory of merging instability of magnetic islands in the plasma current layer with strong longitudinal magnetic field (i.e., along the equilibrium current) is presented. The growth rate of the instability turns out to increase with the growth of the island width and is inversely proportional to the longitudinal field. It is shown that the explosive growth of magnetic islands takes place on the stage of merging. These facts are in qualitative agreement with MHD theories and numerical simulation results.

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