Excitation of Alfven waves by bouncing electron beams - An origin of nightside magnetic pulsations

Details Excitation of Alfven waves by bouncing electron beams - An origin of nightside magnetic pulsations Excitation of Alfven waves by bouncing electron beams - An origin of nightside magnetic pulsations

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979georl...6..664h&link_type=abstract

Geophysical Research Letters, vol. 6, Aug. 1979, p. 664-666.

Physics

7

Earth Magnetosphere, Electron Oscillations, Geomagnetic Pulsations, Magnetohydrodynamic Waves, Night Sky, Wave Excitation, Electron Beams, Ion Cyclotron Radiation, Larmor Radius, Magnetic Storms, Satellite Observation

Scientific paper

Electron beams produced in the night to dusk-side magnetosphere at
geomagnetic substorm times are shown to be able to excite the kinetic
Alfven wave, the Alfven wave with a perpendicular wavelength comparable
to the ion gyroradius. This process can be an origin of dusk-side
magnetic pulsations which are often observed by synchronous satellites.

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