Physics
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987georl..14..636h&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 14, June 1987, p. 636-639.
Physics
92
Geomagnetic Tail, Interplanetary Magnetic Fields, Magnetic Field Reconnection, Magnetic Signatures, Plasma Layers, Space Plasmas, Atmospheric Models, Earth Magnetosphere, Lines Of Force, Magnetic Flux, Three Dimensional Models
Scientific paper
The hypothesis that the IMF penetrates plasmoids causing them to be three- rather than two-dimensional is tested by comparing observations of By within plasmoids and related tail structures to upstream IMF By data. The magnetic topologies that result from the mergings of closed plasma sheet flux tubes and open tail lobe flux tubes at a near-earth neutral line, and merging near the tail flanks are described and studied. The particle signals and isotropic electron distributions are examined. It is observed that the IMF By penetrates plasmoids and that their structure is three-dimensional. In the three-dimensional model of plasmoids the reconnected plasma sheet field lines form a magnetic flux-ropelike structure. The three-dimensional model is utilized to analyze stagnant, slowly moving and earthward moving structures.
Hughes Jeffrey W.
Sibeck David G.
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