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A model of an isolated magnetic flux tube in a stratified atmosphere

Published online by Cambridge University Press:  13 March 2009

Wen-Rui Hu
Wen-Rui Hu
Affiliation:
Institute of Mechanics, Chinese Academy of Science, Beijing, China
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Abstract

A two-dimensional model of a magnetic flux tube confined in a gravitational stratified atmosphere is discussed. The magnetic field in the flux tube is assumed to be force-free. By using the approximation of large scale height, the problem of a free boundary with nonlinear conditions may be reduced to one involving a fixed boundary. The two-dimensional features are obtained by applying the perturbation method and adopting the Lüst–Schlüter model as the basic state. The results show that the configuration of a flux tube confined in a gravitational stratified atmosphere is divergent, and the more twisted the magnetic field, the more divergent is the flux tube.

Type
Research Article
Information
Journal of Plasma Physics , Volume 37 , Issue 3 , June 1987 , pp. 323 - 333
Copyright
Copyright © Cambridge University Press 1987

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References

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