Computer Science
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.287..813b&link_type=abstract
Nature, vol. 287, Oct. 30, 1980, p. 813-815.
Computer Science
1
Jupiter Atmosphere, Planetary Magnetospheres, Plasma Dynamics, Plasma Layers, Plasmasphere, Equatorial Electrojet, Flux Density, Magnetic Flux, Voyager 2 Spacecraft, Jupiter, Plasma Sheets, Dynamics, Expansion, Contraction, Flow, Magnetosphere, Motion, Flux Tubes, Dayside, Nightside, Solar Wind, Compression, Velocity, Equipment, Voyager 2, Data, Ions, Flux Density, Comparisons, Analysis, Corotation, Patterns, Models
Scientific paper
Observations suggesting the sequential expansion and compression of the Jovian plasma sheet are reported. Plasma flow in the vicinity of Jupiter was monitored by the four modulated-grid Faraday cups on board each of the Voyager spacecraft at times of closest Jupiter approach. Sensor measurements reveal the flow of magnetospheric plasma to be directed away from the equatorial current sheet near local noon and to be directed towards the sheet in the dusk to midnight sector. The observed flow patterns are interpreted in terms of short-time-scale perturbations of magnetic flux tubes due to the compression of the dayside magnetosphere by the solar wind. It is noted that such a dynamic motion is quite different from what would be expected of slower, quasi-static equilibrium plasma sheet expansion and contraction.
Belcher John W.
McNutt Ralph L.
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