Physics
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984georl..11..259w&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 11, March 1984, p. 259-262. Research supported by the South African Council
Physics
7
Geomagnetic Micropulsations, Radar Measurement, Wave Propagation, Doppler Radar, Drift Rate, Polarization (Waves), Resonant Frequencies
Scientific paper
The results of observations by the Stare radar of an eastward-propagating Pc5 pulsation with short azimuthal wavelength are presented. Previously observed high-m phenomena have been propagating westward. This event occurred in the predawn sector during a time of substorm activity. The azimuthal wave number is m = 30 + or - 3. Calculations of the drift and bounce periods of energetic particles show that the most plausible particle resonances are with near-equatorial drifting electrons in the 5 to 20 keV range, or with bounce-resonance protons in the 0.03-1 keV range. If the drift mirror instability is important it must be with guiding center-drifting electrons, or the wave velocity must match the diamagnetic drift velocity; which is only possible if the pressure gradient is inwards.
Nielsen Edward
Walker D. M. A.
No associations
LandOfFree
Stare observations of an eastward propagating Pc5 pulsation with large azimuthal wavenumber 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 Stare observations of an eastward propagating Pc5 pulsation with large azimuthal wavenumber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stare observations of an eastward propagating Pc5 pulsation with large azimuthal wavenumber will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1041317