Drift compressional instability in the magnetosphere

Journal Article · Tue Dec 01 04:00:00 EST 1970 · J. Geophys. Res.; (United States)

OSTI ID:5923839

Ng, P H; Patel, V L; Chen, S

The properties of the drift compressional instability in the magnetosphere with a two-component plasma are examined by using gyrokinetic theory. A dipole field is used to approximate the equilibrium geomagnetic field. In contrast to the slab model it is found that electrons of the hot component have a stabilizing effect on the mode excited by the protons. With appropriate vaues of various parameters, the wave periods in the range of 30--200 s are obtained from numerical calculations of the model. The drift compressional instability may provide possible explanation of the compressional waves observed in the magnetosphere.

• Research Organization: Department of Physics, University of Denver, Colorado
• OSTI ID: 5923839
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 89:A12; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISPERSION RELATIONS
DISTRIBUTION FUNCTIONS
DRIFT INSTABILITY
EARTH ATMOSPHERE
FUNCTIONS
GEOMAGNETIC FIELD
INSTABILITY
INSTABILITY GROWTH RATES
MAGNETIC FIELDS
MAGNETOSPHERE
NUMERICAL SOLUTION
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES