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

Journal Article · Tue Aug 01 04:00:00 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), Journal Name: Geophysical Research Letters (American Geophysical Union); (USA) Vol. 16:8; ISSN GPRLA; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

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