SO2 ionization and dissociation in the Io plasma torus

Details SO2 ionization and dissociation in the Io plasma torus SO2 ionization and dissociation in the Io plasma torus

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.5301c&link_type=abstract

Journal of Geophysical Research, vol. 87, July 1, 1982, p. 5301-5304.

Physics

16

Gas Dissociation, Gas Ionization, Io, Space Plasmas, Sulfur Dioxides, Toroidal Plasmas, Charge Exchange, Electron Impact, Ion Impact, Negative Ions, Neutral Particles, Particle Interactions, Plasma Temperature

Scientific paper

Escape of SO2 from Io may be driven by corotating ion impact and energy deposition by the Io flux tube current. The yield of O I per SO2 is estimated in steady state ionization and dissocation of SO2. An average SO2 injection rate of 10 to the 28th per sec is found to be consistent with O I observations in the hot plasma torus. The average densities of S I and SO2 are estimated, but the expected oxygen to sulfur ion ratios from SO2 ionization and dissociation are uncertain. There is substantial loss of neutrals from charge exchange and electron impact on molecular and negative ions (Io plasma torus, mass injection, neutral densities).

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