Physics
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...100.7997g&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 100, no. A5, p. 7997-8002
Physics
17
Earth Magnetosphere, Earth-Ionosphere Waveguide, Geomagnetism, Ion Cyclotron Radiation, Magnetohydrodynamic Waves, Ponderomotive Forces, Geomagnetic Pulsations, Geomagnetic Tail, Geos 1 Satellite, Plasma Density, Plasmasphere, Viking Spacecraft
Scientific paper
By using a general expression for the ponderomtive wave force, we have evaluated the action of ion cyclotron Alfven waves on the plasma density in a longitudinal waveguide. The main effect is the condensation of the plasma in the vicinity of the waveguide equator. According to observations onboard the GEOS 1 and Viking satellites, the amplitudes of such geomagnetic pulsations can reach up to several nanoteslas. This is sufficient to cause a strong modification of the cold plasma density in the magnetosphere under the action of ion cyclotron Alfven pulsations. Furthermore, we have also speculated on the possible effects of the ponderomotive wave force on the problems connected with the so called 'wave-induced substorms' in the neutral sheet of the geomagnetic tail as well as with the phenomenon of ' ponderomotive plasma filling,' which determines the relaxation of the plasmasphere after the geomagnetic perturbations.
Feygin F. Z.
Guglielmi A. V.
Kant Shukla Padma
Kurchashov Yu. P.
McKenzie James F.
No associations
LandOfFree
Ponderomotive wave forces in longitudinal MHD waveguides 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 Ponderomotive wave forces in longitudinal MHD waveguides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ponderomotive wave forces in longitudinal MHD waveguides will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1061325