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Opening of the Magnetic Field Lines in a Fast Rotating Magnetosphere, with an Application to Jupiter

Published online by Cambridge University Press:  04 August 2017

J. J. Aly
J. J. Aly*
Affiliation:
Service d'Astrophysique – CEN Saclay 91191 Gif–sur–Yvette Cedex, FRANCE

Extract

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In this Communication, we consider a simple model of magnetosphere around a fast rotating Jupiter–like object possessing a spin–aligned dipolar moment μ. In this model, low–energy plasma released by inner sources located beyond the corotation radius diffuses outward through closed lines, forming a thin equatorial disk in which there is a quasistatic balance between the centrifugal force and the magnetic tension. At some critical radius r0, however, the magnetic field is no longer strong enough to hold the matter, and blows open, the matter escaping freely (Fig. 1) (this model has been introduced by Hill and Carbary, 1978).

Type
Session III
Information
Symposium - International Astronomical Union , Volume 107: Unstable Current Systems and Plasma Instabilities , 1985 , pp. 217 - 220
Copyright
Copyright © Reidel 1985 

References

Hill, T. W., 1979, J. Geophys. Res., 84, 6554.CrossRefGoogle Scholar
Hill, T. W. and Carbary, J. F., 1978, J. Geophys. Res., 83, 5745.CrossRefGoogle Scholar
Sneddon, I. N., 1966, Mixed Boundary Value Problems in Potential Theory, Wiley, New York.Google Scholar