Physics
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10...17n&link_type=abstract
Geophysical Research Letters, vol. 10, Jan. 1983, p. 17-19.
Physics
16
Beta Factor, Geomagnetic Pulsations, Magnetohydrodynamic Stability, Magnetohydrodynamic Waves, Plasma Drift, Space Plasmas, Earth Magnetosphere, Low Frequencies, Nonuniform Plasmas, Wave Dispersion
Scientific paper
An analysis of the dispersion equation, which contains first-order B-gradient effect, for an inhomogeneous plasma in the magnetosphere is presented. Consideration is given to a magnetized high beta two-component plasma, in line with the conditions producing low frequency hydromagnetic pulsations during geomagnetic storm periods in the magnetosphere. A linear dispersion equation is defined for the low frequency regime, taking into account the hot electron and ion distributions, their density gradient, and the ambient magnetic field. Inclusion of the B-gradient particle drift term in the dispersion equation reveals that the cold component, besides reducing the Alfven speed and creating an unstable drift compressional wave, also aids in coupling the mode to the shear Alfven wave. A significant modification of the instability then occurs, with slow growth of the Alfven-like wave.
Ng Pun-Hon
Patel Vithal L.
No associations
LandOfFree
The importance of B-gradient drift in high beta magnetospheric plasma instabilities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The importance of B-gradient drift in high beta magnetospheric plasma instabilities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The importance of B-gradient drift in high beta magnetospheric plasma instabilities will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1196954