Further observational support for the limited-latitude magnetodisc model of the outer Jovian magnetosphere

Details Further observational support for the limited-latitude magnetodisc model of the outer Jovian magnetosphere Further observational support for the limited-latitude magnetodisc model of the outer Jovian magnetosphere

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.7519t&link_type=abstract

Journal of Geophysical Research, vol. 86, Sept. 1, 1981, p.7519-7526.

Physics

4

Atmospheric Models, Current Sheets, Jupiter Atmosphere, Magnetic Anomalies, Planetary Magnetospheres, Space Exploration, Energetic Particles, Plasma Interactions, Scale Height, Solar Wind, Voyager 1 Spacecraft, Voyager 2 Spacecraft, Jupiter, Magnetosphere, Models, Latitude, Magnetic Properties, Voyager 1, Anomalies, Comparisons, Intensity, Magnetohydrodynamics, Current Sheets, Solar Wind, Structure, Dynamics, Charged Particles, Magnitude, Voyager 2, Theoretical Studies, Pressure, Data

Scientific paper

A distinction is made between the solar-wind-influenced limited-latitude magnetodisk and magnetic anomaly models of the outer Jovian magnetosphere, and an observational comparison of the two models is presented based on Pioneer and Voyager measurements. Predictions of the two models concerning the location of the current sheet as a function of Jovigraphic latitude, System III longitude and radial distance are contrasted, and it is shown that both models can satisfactorily explain the merging of the current sheep crossings by Voyager 1 and 2. Variations in the energetic particle intensities observed on the outbound pass of Voyager 1 and 2 are observed to correspond to scale heights for energetic particle latitudinal confinement consistent with MHD calculations and Pioneer 10 and Voyager magnetic observations only when the scale heights are calculated on the basis of the limited-latitude magnetodisk model. It is thus suggested that the solar wind must have a greater influence on magnetosphere structure than internal longitudinal plasma asymmetry.

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