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Plasma in the Jovian magnetosphereIt is shown that the plasma in Jupiter's ionosphere is collisionless above a certain level. In the outer magnetosphere, where the rotational force dominates the gravitational force, the collisionless plasma has a beam-like distribution and gives rise to a two-stream instability. This leads to trapping of plasma in the centrifugally dominated region of the magnetosphere. Plasma is lost by recombination. Equilibrium-trapped particle densities are calculated by requiring a balance between trapping by wave-particle interaction and loss by recombination. The results are compared with recent observations from Pioneer 10. It is suggested that the observations require an unexplained ion-heating mechanism. Some consequences of the model are discussed.
Document ID
19750016533
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Goertz, C. K. (Iowa Univ. Iowa City, IA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1975
Subject Category
Astrophysics
Report/Patent Number
NASA-CR-142761
U-OF-IOWA-75-16
Accession Number
75N24605
Funding Number(s)
CONTRACT_GRANT: NAS5-5603
CONTRACT_GRANT: NAS2-6563
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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