Physics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90..267t&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Jan. 1, 1985, p. 267-273. Research sponsored by the U.S. Department o
Physics
50
Bow Waves, Ion Motion, Magnetohydrodynamic Waves, Monochromatic Radiation, Plasma Oscillations, Cyclotron Resonance, Doppler Effect, Gyration, Shock Waves
Scientific paper
Episodes of nearly monochromatic, low-frequency (0.03 Hz) hydromagnetic waves are occasionally observed upstream of the earth's bow shock. High time resolution (3 s) measurements of two-dimensional ion distributions during two nearly monochromatic wave events reveal that the ion distributions asociated with these waves are 'gyrating ions.' Such distributions consists of suprathermal ions with parallel and perpendicular velocities confined to a fairly narrow range of (nonzero) values. The ions are also often confined to a fairly narrow range of gyrophase angle ('gyrophase bunched'). In one of the two cases, the observed frequency of the waves agrees quite well with the Doppler shifted resonance frequency of waves in right-hand resonance with the observed gyrating ions. In the second case, the observed frequency is lower than the predicted frequency by a factor of 1.5-2.
Bame J. Jr. S.
Gosling Jack T.
Rusell C. T.
Thomsen Michelle F.
No associations
LandOfFree
Gyrating ions and large-amplitude monochromatic MHD waves upstream of the earth's bow shock 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 Gyrating ions and large-amplitude monochromatic MHD waves upstream of the earth's bow shock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gyrating ions and large-amplitude monochromatic MHD waves upstream of the earth's bow shock will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-926907