Computer Science – Sound
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.361..424l&link_type=abstract
Nature (ISSN 0028-0836), vol. 361, no. 6411, p. 424-428.
Computer Science
Sound
76
Geomagnetic Pulsations, Ionospheric Sounding, Magnetic Field Reconnection, Magnetopause, Solar Terrestrial Interactions, Space Plasmas, Auroral Zones, Interplanetary Magnetic Fields, Solar Wind
Scientific paper
The plasma precipitating into the earth's dayside auroral atmosphere has characteristics which show that it originates from the shocked solar-wind plasma of the magnetosheath. The particles of the magnetosheath plasma precipitate down a funnel-shaped region (cusp) of open field lines resulting from reconnection of the geomagnetic field with the interplanetary magnetic field. Although the cusp has long been considered as well-defined spatial structure maintained by continuous reconnection, it has recently been suggested that reconnection instead may take place in a series of discontinuous events; this is the 'pulsating cup model'. Coordinated radar and satellite observations of a series of discrete, poleward-moving plasma structure that are consistent with the pulsating-cusp model are presented.
Cowley Stan W. H.
Davda V. N.
Denig William F.
Farmer Dean A.
Lockwood Marian
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