On field line resonances of hydromagnetic Alfven waves in dipole magnetic field

Journal Article · Tue Aug 01 00:00:00 EDT 1989 · Geophysical Research Letters (American Geophysical Union); (USA)

DOI:https://doi.org/10.1029/GL016i008p00895· OSTI ID:5837287

Chen, Liu; Cowley, S C ^[1]

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1. Princeton Univ., NJ (USA)

Using the dipole magnetic field model, the authors have developed the theory of field line resonances of hydromagnetic Alfven waves in general magnetic field geometries. In this model, the Alfven speed thus varies both perpendicular and parallel to the magnetic field. Specifically, it is found that field line resonances do persist in the dipole model. The corresponding singular solutions near the resonant field lines as well as the natural definition of standing shear Alfven eigenfunctions have also been systematically derived.

• OSTI ID: 5837287
• Journal Information: Geophysical Research Letters (American Geophysical Union); (USA), Vol. 16:8; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALFVEN WAVES
RESONANCE
GEOMAGNETIC FIELD
COLD PLASMA
COMPARATIVE EVALUATIONS
DIPOLES
EARTH MAGNETOSPHERE
EIGENFUNCTIONS
INHOMOGENEOUS PLASMA
MAGNETIC FIELDS
MATHEMATICAL MODELS
PULSATIONS
SHEAR
STANDING WAVES
EARTH ATMOSPHERE
FUNCTIONS
HYDROMAGNETIC WAVES
MULTIPOLES
PLASMA
640201* - Atmospheric Physics- Auroral
Ionospheric
& Magetospheric Phenomena