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Joule heating of Io's ionosphere by unipolar induction currentsElectrical induction in Io's ionosphere, due to the corotating plasma bound to the Jovian magnetosphere, is one possible source for the attainment of the high temperatures suggested by the large scale height of Io's ionosphere. Unipolar induction models are constructed to calculate ionospheric joule heating numerically, whose heating rates lie between 10 to the -9th and 10 to the -8th W/cu m. The binding and coupling of the ionosphere is due to the dense, and possibly ionized, neutral SO2 atmosphere, and there appears to be no need to postulate the existence of an intrinsic Ionian magnetic field in order to retain the observed ionnosphere.
Document ID
19810048205
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Herbert, F.
(Arizona Univ. Tucson, AZ, United States)
Lichtenstein, B. R.
(Arizona, University Tucson, Ariz., United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Subject Category
Lunar And Planetary Exploration
Accession Number
81A32609
Funding Number(s)
CONTRACT_GRANT: JPL-955027
CONTRACT_GRANT: NGR-03-002-370
Distribution Limits
Public
Copyright
Other

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