Structure of Jupiter's magnetopause - Pioneer 10 and 11 observations

Details Structure of Jupiter's magnetopause - Pioneer 10 and 11 observations Structure of Jupiter's magnetopause - Pioneer 10 and 11 observations

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.3321s&link_type=abstract

Journal of Geophysical Research, vol. 86, May 1, 1981, p. 3321-3334.

Physics

19

Jupiter Atmosphere, Magnetopause, Pioneer 10 Space Probe, Pioneer 11 Space Probe, Planetary Magnetic Fields, Planetary Magnetospheres, Boundary Layers, Hodographs, Magnetic Field Configurations, Spatial Distribution, Thickness, Jupiter, Magnetosphere, Magnetopause, Structure, Pioneer 10, Flow, Pioneer 11, Observations, Thickness, Comparisons, Boundary Layers, Magnetic Fields, Data, Magnitude, Plasmas, Models, Magnetosheath

Scientific paper

The magnetic structure of Jupiter's magnetopause, as observed by the space probes Pioneer 10 and 11, is compared with terrestrial magnetopause structures from the OGO 5 mission. The Jovian magnetopause thickness, deduced from a rapid triple crossing, is found to lie in the range 3500-5200 km, while the adjoining plasma boundary layer was 5600-8400 km thick. Comparison with the terrestrial situation suggests that the dayside magnetopause thickness in both cases is a few times the ion gyroradius and that the dayside boundary layer is also of about the same width. The magnetopause normal vector and normal magnetic field component are determined for each crossing by use of minimum variance analysis. The results indicate a blunt and floppy magnetopause surface, for the most part with an insignificant normal magnetic field component. Only for three of the 14 crossings did this component exceed 1.5 times its error estimate. In two of these cases, the magnetic field tangential to the magnetopause displayed the characteristic features of a rotational discontinuity.

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