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Nonlinear effects in Alfvén resonance

Published online by Cambridge University Press:  01 February 1997

I. S. DMITRIENKO
I. S. DMITRIENKO
Affiliation:
Institute of Solar–Terrestrial Physics (ISTP), Irkutsk 33, PO Box 4026, 664033, Russia
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Abstract

A study is made of the influence of nonlinearity upon the structure of a steady-state disturbance brought about by low-frequency (ω[Lt ]ωi) monochromatic magnetosound propagating in a transversally inhomogeneous low-pressure plasma (β[Lt ]me/mi), in the vicinity of the Alfvén resonance point for the case when the principal linear mechanism for forming the transverse structure is provided by magnetic field diffusion due to small plasma resistivity. It is shown that the nonlinear properties of the fundamental harmonic of a disturbance are determined by its self-action through a plasma density variation that it produces. The disturbance structure in the region of the Alfvén resonance is described.

Type
Research Article
Information
Journal of Plasma Physics , Volume 57 , Issue 2 , February 1997 , pp. 311 - 326
Copyright
© 1997 Cambridge University Press

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