Physics – Plasma Physics
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8115923b&link_type=abstract
Unknown
Physics
Plasma Physics
Current Sheets, Jupiter (Planet), Magnetic Fields, Mathematical Models, Neutral Sheets, Planetary Magnetospheres, Plasma Physics, Magnetic Measurement, Periodic Variations, Voyager Project
Scientific paper
Analyses of Voyager magnetic field measurements have extended the understanding of the structural and temporal characteristics of Jupiter's magnetic tail. The magnitude of the magnetic field in the lobes of the tail is found to decrease with Jovicentric distance approximately as r to he-1.4, compared with the power law exponent of -1.7 found for the rate of decrease along the Pioneer 10 outbound trajectory. Voyager observations of magnetic field component variations with Jovicentric distance in the tail do not support the uniform radial plasma outflow model derived from Pioneer data. Voyager 2 has shown that the azimuthal current sheet which surrounds Jupiter in the inner and middle magnetosphere extends tailward (in the anti-Sun direction) to a distance of at least 100 RJ. In the tail this current sheet consists of a plasma sheet and embedded neutral sheet. In the region of the tail where the sheet is observed, the variation of the magnetic field as a result of the sheet structure and its 10 hr periodic motion is the dominant variation seen.
Behannon Kenneth W.
Burlaga Leonard Francis
Ness Norman F.
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