Saturn's magnetosphere and its interaction with the solar wind

Details Saturn's magnetosphere and its interaction with the solar wind Saturn's magnetosphere and its interaction with the solar wind

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.5655s&link_type=abstract

Journal of Geophysical Research, vol. 85, Nov. 1, 1980, p. 5655-5674.

Physics

46

Bow Waves, Planetary Magnetic Fields, Planetary Magnetospheres, Plasma Interactions, Saturn Atmosphere, Solar Wind, Harmonic Analysis, Magnetic Signatures, Magnetopause, Magnetosheath, Shock Waves, Spherical Harmonics, Saturn, Magnetosphere, Solar Wind, Interactions, Magnetic Fields, Data, Pioneer 11, Magnetopause, Bow Shock, Models, Harmonics, Compression, Dipole Moment, Current Sheets, Helium Vector Magnetometer, Diagrams, Analysis, Observations, Thickness, Velocity, Plasmas, Plasma Analyzer

Scientific paper

The paper deals with the Pioneer 11 vector helium magnetometer observations of Saturn's planetary magnetic field, magnetosphere, magnetopause, and bow shock. Models based on spherical harmonic analyses of measurements inside 8 Saturn radii show that the planetary field has a high degree of symmetry about the rotation axis. The vector dipole moment has a tilt angle of less than 1 deg and is offset along the polar axis by 0.04 plus or minus 0.02 Saturn radius. Equatorial offsets derived from the models show pronounced variability and could be consistent with a very small offset. Large impulsive field compressions are observed in the magnetosheath near noon. Multiple crossings of the bow shock are observed, and the absence of significant changes in field direction indicates that it is quasi-perpendicular.

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