Theory of field line resonances of standing shear Alfven waves in three-dimensional inhomogeneous plasmas

Journal Article · Sun Mar 01 00:00:00 EST 1992 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/91JA02804· OSTI ID:5398136

Schulze-Berge, S; Cowley, S; Chen, Liu ^[1]

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1. Princeton Univ., NJ (United States)

The authors have analyzed field line resonances of Alfven waves in a rectangular box model with a straight uniform magnetic field but three-dimensionally varying density. Field line resonances are shown to exist even with this three-dimensional uniformity. For a given wave frequency they can construct the surface on which the resonance occurs and derive the local form of the singular solution. Magnetic perturbations are found to lie predominantly in the resonant surface. In the presence of azimuthal inhomogeneous the present theory could explain why some satellite measurements show geomagnetic pulsations of comparable magnitude in radial and azimuthal components.

• OSTI ID: 5398136
• Journal Information: Journal of Geophysical Research; (United States), Vol. 97:A3; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
INHOMOGENEOUS PLASMA
ALFVEN WAVES
ASYMMETRY
COLD PLASMA
GEOMAGNETIC FIELD
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MATHEMATICAL MODELS
RESONANCE
SHEAR
STANDING WAVES
HYDROMAGNETIC WAVES
PLASMA
661320* - Auroral
Ionospheric
& Magnetospheric Phenomena- (1992-)