Strong Pitch-Angle Scattering of Energetic Electrons in the Presence of Electrostatic Waves above the Ionospheric Trough Region.
Rept. for Jan-Jun 71,
AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS
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Simultaneous measurements of energetic electrons and electrostatic waves in the midlatitude trough region indicate that events characterized by strong pitch-angle diffusion in the altitude range 2000 to 4500 km occur in the presence of ELF electrostatic waves. These waves are attributed to a current-driven ion cyclotron instability. Scattering by electrostatic waves is sufficient to account for the strong pitch-angle scattering commonly observed by low-altitude satellites and for the hsarply defined feature previously referred to as the 3outer trapping boundary.3 Author
- Atmospheric Physics