Other
Scientific paper
Jul 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982natur.298...44c&link_type=abstract
Nature, vol. 298, July 1, 1982, p. 44-46.
Other
94
Planetary Magnetic Fields, Saturn (Planet), Voyager 1 Spacecraft, Voyager 2 Spacecraft, Zonal Harmonics, Dynamo Theory, Magnetic Field Configurations, Magnetic Flux, Saturn, Zones, Harmonics, Models, Magnetic Fields, Voyager 1, Data, Voyager 2, Observations, Octupole, Comparisons, Dynamo, Rotation, Intensity, Latitude, Flux, Analysis, Procedure, Techniques, Currents
Scientific paper
An analysis of the magnetic field of Saturn is presented which takes into account both the Voyager 1 and 2 vector magnetic field observations. The analysis is based on the traditional spherical harmonic expansion of a scale potential to derive the magnetic field within 8 Saturn radii. A third-order zonal harmonic model fitted to Voyager 1 and 2 observations is found to be capable of predicting the magnetic field characteristics at one encounter based on those observed at another, unlike models including dipole and quadrupole terms only. The third-order model is noted to lead to significantly enhanced polar surface field intensities with respect to dipole models, and probably represents the axisymmetric part of a complex dynamo field.
Acuña Mario Humberto
Connerney Jack E. P.
Ness Norman F.
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