Magnetic field studies by Voyager 2 - Preliminary results at Saturn

Details Magnetic field studies by Voyager 2 - Preliminary results at Saturn Magnetic field studies by Voyager 2 - Preliminary results at Saturn

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sci...215..558n&link_type=abstract

Science, vol. 215, Jan. 29, 1982, p. 558-563. Research supported by the Bundesministerium für Forschung und Technologie.

Computer Science

73

Flyby Missions, Magnetic Field Configurations, Planetary Magnetic Fields, Saturn (Planet), Voyager 2 Spacecraft, Axes Of Rotation, Bow Waves, Kilometric Waves, Magnetic Dipoles, Periodic Variations, Planetary Rotation, Shock Waves, Solar Activity Effects, Voyager 1 Spacecraft, Saturn, Voyager 1, Voyager 2, Magnetic Fields, Magnetosphere, Anomalies, Magnetopause, Comparisons, Asymmetry, Magnetic Properties, Magnetometers, Kilometer Waves, Wavelengths, Radiation, Modulation, Bow Shock, Dipole, Magnetosheath,

Scientific paper

Results of Voyager 2 studies of the magnetosphere and planetary magnetic field of Saturn are presented. Magnetometer studies have confirmed the results obtained by Voyager 1, indicating the magnetic field to be that of a centered dipole of moment 0.21 gauss Saturn radii-cubed, tilted approximately 0.8 deg from the rotation axis and a maximum measured field intensity of 1187 nT at latitude 17.3 deg N just before periapsis. Voyager 2 observed multiple bow shock and magnetopause crossings during its inbound and outbound trajectories, which were complementary to those of Voyager 1, including magnetopause crossing at 18.5 Saturn radii on the inbound trajectory, and at 48.4-50.9 Saturn radii outbound indicative of magnetospheric expansion due to changing solar wind conditions. Throughout the outbound passage, the magnetospheric field was observed to be relatively steady and smooth, with no evidence for any azimuthal asymmetry or magnetic anomaly. Results thus are incapable of accounting for the observed periodic modulation of the Saturnian kilometric radio emissions.

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