Publisher： John Wiley & Sons Inc
E-ISSN： 2156-2202|90|A1|311-324
ISSN： 0148-0227
Source： Journal Of Geophysical Research, Vol.90, Iss.A1, 1985-01, pp. : 311-324
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Abstract
The Voyager 1 ion data that were obtained inside the orbit of Io allow accurate determination of convective velocity, temperature, and density of the major ionic species (S+, O+, S2+ and O2+ ions). The irregular radial profiles of ion temperature and flux tube content are not consistent with simple models of radial transport of plasma from a source near Io. The evidence of a source of ions well inside Io's orbit is provided by the detection of molecular (SO2+) ions at 5.3 RJ, the prevalence of non‐Maxwellian tails to the ion distribution functions, the persistent presence of oxygen ions throughout the inner torus, and a 1–3% lag behind corotation outside 5.4 RJ.
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