Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.3329j&link_type=abstract
Journal of Geophysical Research, vol. 85, July 1, 1980, p. 3329-3336.
Astronomy and Astrophysics
Astronomy
Astronomical Models, Jupiter Atmosphere, Jupiter Rings, Pioneer 10 Space Probe, Planetary Magnetic Fields, Biot Method, Magnetic Equator, Magnetic Measurement, Jupiter, Pioneer 10, Models, Magnetic Fields, Data, Distance, Procedure, Shape, Thickness, Disks, Magnetosphere, Comparisons, Magnetopause, Properties, Observations
Scientific paper
A model of the magnetic field of the Jovian current disk is presented. The model uses Euler functions and the Biot-Savart law applied to a series of concentric, but not necessarily coplanar current rings. It was found that the best fit to the Pioneer 10 outbound perturbation magnetic field data is obtained if the current disk is twisted, and also bent to tend toward parallelism with the Jovigraphic equator. The inner and outer radii of the disk appear to be about 7 and 150 Jovian radii, respectively; because of the observed current disk penetrations, the bent disk also requires a deformation in the form of a bump or wrinkle whose axis tends to exhibit spiraling. Modeling of the azimuthal field shows that it is due to a thin radial current sheet, but it may actually be due in large part to penetration of a tail current sheet as suggested by Voyager observations.
Blake M. L.
Jones Erica D.
Melville J. G.
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