NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Calculation of charge-state ratios for satellite Tor IThe diffusion of ions in a satellite plasma torus is presently modeled in terms of a one-dimensional random walk in which the particle source is at 0, the particle sink is at an N value that is an integer greater than 2, and the scale size of the diffusion cell is unity. The probability distribution function of the number of steps to exit for an ion is obtained and used in a model which incorporates ionization by electron impact to derive steady state expressions for the ratio of doubly to singly ionized ions, as well as the total number of ions in the torus. The results thus obtained are applied to the torus of the Jovian satellite Io, in order to predict mean residence times for sulfur and oxygen ions.
Document ID
19860029473
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Summers, D.
(California Univ. Los Angeles, CA, United States)
Siscoe, G. L.
(California, University Los Angeles, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1985
Publication Information
Publication: Geophysical Research Letters
Volume: 12
ISSN: 0094-8276
Subject Category
Lunar And Planetary Exploration
Accession Number
86A14211
Funding Number(s)
CONTRACT_GRANT: NSERC-A-0621
CONTRACT_GRANT: NAGW-87
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available