Heavy ions from the Galilean satellites and the centrifugal distortion of the Jovian magnetosphere

Details Heavy ions from the Galilean satellites and the centrifugal distortion of the Jovian magnetosphere Heavy ions from the Galilean satellites and the centrifugal distortion of the Jovian magnetosphere

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.4561h&link_type=abstract

Journal of Geophysical Research, vol. 81, Sept. 1, 1976, p. 4561-4565.

Physics

40

Galilean Satellites, Heavy Ions, Jupiter Atmosphere, Magnetospheric Instability, Planetary Magnetospheres, Current Sheets, Ion Production Rates, Ion Scattering, Magnetic Field Configurations, Planetary Magnetic Fields, Scale Height

Scientific paper

The Galilean satellites constitute a potentially significant source of plasma to the Jovian atmosphere. The paper examines the distortion of the Jovian magnetosphere that would result from injection of ions at the Galilean satellites. The magnetic distortion produced is a localized perturbation near the equatorial plane, in contrast to the large-scale distortion produced by Jovian atmospheric ions. The study estimates the relative perturbation currents resulting from the two sources in terms of the unknown ion production rate at the satellites. It is found that the two perturbations would be of comparable magnitudes if the ion source flux at all of the Galilean satellites were comparable to the photo-ion escape flux from Jupiter's atmosphere. More specifically, ions produced by the Galilean satellites should be confined near the equatorial plane of Jupiter's magnetosphere in a sheet whose thickness is determined by a centrifugal scale height given essentially by the ion thermal speed divided by the corotation frequency.

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