Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-27T20:46:28.339Z Has data issue: false hasContentIssue false
  • English
  • Français

Electrostatic modes in a magnetized plasma with a longitudinal density gradient

Published online by Cambridge University Press:  13 March 2009

J. E. Maggs  and
G. J. Morales
J. E. Maggs
Affiliation:
Institute for Geophysics and Planetary Physics and Physics Department, University of California, Los Angeles, California 90024
G. J. Morales
Affiliation:
Institute for Geophysics and Planetary Physics and Physics Department, University of California, Los Angeles, California 90024
Get access Rights & Permissions [Opens in a new window]

Abstract

An analytic study is made of the electrostatic mode structures which exist between the upper-hybrid cut-off and the plasma resonance in a plasma in which the zero-order density gradient points along the magnetic field. In general the solutions consist of long-wavelength cold modes which are converted to short-wavelength Bohm-Gross modes near plasma resonance. However, there exist certain discrete angles of propagation at which finite solutions exist that can be described solely in terms of cold plasma theory. The relevance of these processes to resonant absorption experiments in the auroral ionosphere is considered. A brief study is made of the changes produced by a finite angle between the density gradient and the magnetic field. The possibility of finding analogous low-frequency structures is also investigated.

Type
Research Article
Information
Journal of Plasma Physics , Volume 29 , Issue 2 , April 1983 , pp. 177 - 194
Copyright
Copyright © Cambridge University Press 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Rabenstein, A. L. 1958 Arch. Rational Mech. Anal. 1, 418.CrossRefGoogle Scholar
Santoru, J., Wong, A. Y. & Gregorio, J. 1980 Bull. Am. Phys. Soc. 25, 916.Google Scholar
Slater, L. J. 1965 Handbook of Mathematical Functions (ed. Abramowitz, M. and Stegun, I. A.), p. 504. Dover.Google Scholar
Wasow, W. 1950 Ann. Math. 52, 350.CrossRefGoogle Scholar
Woo, W. & DeGroot, J. S. 1979 Phys. Fluids, 22, 2241.CrossRefGoogle Scholar