Filamentary structure of a three-dimensional plasmoid

Details Filamentary structure of a three-dimensional plasmoid Filamentary structure of a three-dimensional plasmoid

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94..241b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Jan. 1, 1989, p. 241-251. Research supported by NASA and DFG.

Mathematics

Logic

42

Geomagnetic Tail, Magnetic Field Configurations, Magnetic Field Reconnection, Three Dimensional Models, Interplanetary Magnetic Fields, Magnetic Storms, Magnetosheath, Plasma Sheaths, Solar Terrestrial Interactions

Scientific paper

The changes of the magnetic field topology and the field line connections are examined in detail using a simple explicit magnetic field model of a plasmoid in different stages from its formation, penetration through a separatrix connected with a distant neutral line, to its complete disconnection. It is shown that complications arise from the fact that separatrix surfaces become very complicated, folded, and filamented in the presence of a small but finite magnetic field in the reconnection region. The filamentary mixing of topologically different field lines may lead to a mixing of different plasma populations as well, and thereby possibly to a more efficient dissipation.

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