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Energetic ion dynamics in Jupiter's plasma sheet

Selesnick, R. S. and Cohen, C. M. S. and Khurana, K. K. (2001) Energetic ion dynamics in Jupiter's plasma sheet. Journal of Geophysical Research A, 106 (A9). pp. 18895-18905. ISSN 0148-0227. doi:10.1029/2000JA000242.

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A systematic study of energetic ion trajectories in Jupiter's plasma sheet region predicts a significant role for both regular and stochastic types of motion and reveals several aspects of the ion dynamics that aid in the interpretation of Galileo observations. The motion is generally confined to the vicinity of the current sheet in a way that is proportional to the variable current sheet thickness as seen in the particle and field data. The radial extent of the trajectories increases with rigidity and initial radial distance from the planet, explaining the corresponding lack of high-rigidity ions and decreasing radial gradients at lower rigidity. Ion intensity increases associated with changes in current sheet thickness suggest an acceleration region at ∼25 to 30 R_J. Energy dispersion in ion events at larger radial distances can be explained by such a source combined with elastic ion scattering.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle
Cohen, C. M. S.0000-0002-0978-8127
Khurana, K. K.0000-0002-2856-1171
Additional Information:© 2001 by the American Geophysical Union. Paper number 2000JA000242. Received June 21, 2000; revised October 25, 2000; accepted November 16, 2000. This work was supported by NASA grant NAG5-8634 under the Jovian System Data Analysis Program. Janet G. Luhmann thanks the referees for their assistance in evaluating this paper.
Group:Space Radiation Laboratory
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2001-29
Issue or Number:A9
Record Number:CaltechAUTHORS:20150302-161254042
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Official Citation:Selesnick, R. S., C. M. S. Cohen, and K. K. Khurana (2001), Energetic ion dynamics in Jupiter's plasma sheet, J. Geophys. Res., 106(A9), 18895–18905, doi:10.1029/2000JA000242
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55437
Deposited By: Deborah Miles
Deposited On:05 Mar 2015 22:26
Last Modified:10 Nov 2021 20:45

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