Effects of Io's volcanos on the plasma torus and Jupiter's magnetosphere

Details Effects of Io's volcanos on the plasma torus and Jupiter's magnetosphere Effects of Io's volcanos on the plasma torus and Jupiter's magnetosphere

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...242..812c&link_type=abstract

Astrophysical Journal, Part 1, vol. 242, Dec. 1, 1980, p. 812-827. Research supported by Bell Telephone Laboratories.

Astronomy and Astrophysics

Astrophysics

44

Io, Jupiter Atmosphere, Magnetohydrodynamics, Planetary Magnetospheres, Toroidal Plasmas, Volcanoes, Electron Impact, Flux Density, Gas Composition, Heavy Ions, High Energy Electrons, Oxygen Ions, Protons, Sulfur, Sulfur Dioxides, Voyager Project

Scientific paper

A model is presented of a neutral gas torus produced in Io's orbit by volcanic SO2 escaping from Io whose ionization and dissociation is the main source of plasma in Jupiter's magnetosphere. A 30-50 keV S and O ion plasma results from ionization of S and O atoms in highly eccentric elliptical orbits around Jupiter; these atoms are created by dissociative attachment of SO2 by electrons with energies below 10 eV. The model also includes intrinsic time variability in the Jovian magnetosphere caused by variations in Io's volcanic activity; negative ions are predicted in the Io plasma torus.

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