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Ion exchange with the solar wind for planets with negligible intrinsic magnetic fieldsThe exchange of ions between the ionosphere of a planet with negligible intrinsic magnetic field, and the solar wind is examined. It is suggested that a balance exists between the outflow of ionospheric ions at the plasmapause and ions from the solar wind in a restricted region close to the subsolar point. This results in a current system towards the subsolar point on the surface of the ionopause and a toroidal magnetic field. Simple calculations are made of the current and field configuration that might result from the system for conditions similar to those encountered on the Viking 1 and 2 transits of the Mars ionosphere.
Document ID
19790044216
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Nisbet, J. S.
(Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 9, 2013
Publication Date
March 1, 1979
Publication Information
Publication: Planetary and Space Science
Volume: 27
Subject Category
Lunar And Planetary Exploration
Accession Number
79A28229
Funding Number(s)
CONTRACT_GRANT: NGL-39-009-003
Distribution Limits
Public
Copyright
Other

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