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The probability distributions of S/+/ gyrospeeds in the Io torusThe first detailed thermal speed probability distribution for a Jovian plasma ion is presented. The distribution of heavy ion thermal speeds appears to be highly significant for an evaluation of the processes by which the particle and energy budgets of the Io plasma torus are maintained. Attention is given to the measurement, reduction, and analysis procedures which yield the reported probability distribution. A kinetic energy inventory of the Jovian plasma heavy ion component can be obtained from high-resolution, high-precision spectrophotometry of emission lines. The current S(+) study finds that detection of the line wings results in a mean energy (approximately 60 eV) which is higher by a factor of approximately 10 than is implied by the line core. This illustrates that a dispersive measurement may provide only a lower limit to the kinetic energy content.
Document ID
19820036563
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Brown, R. A.
(Arizona, University Tucson, AZ, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: Journal of Geophysical Research
Volume: 87
Subject Category
Lunar And Planetary Exploration
Accession Number
82A20098
Funding Number(s)
CONTRACT_GRANT: NSG-7634
Distribution Limits
Public
Copyright
Other

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