Coherent, Intense Duskside Plasmaspheric Hiss
Abstract
Our current understanding of plasmaspheric hiss is that it is typically low-intensity and incoherent. Wave-particle interactions will lead to slow pitch angle diffusion or a slow drizzle particle precipitation. However the previous precepts are not totally correct. We will show that duskside plasmaspheric hiss with 300 to 650 Hz frequencies can be both intense ( 2.0 nT peak-to-peak) and coherent. Such waves can and will lead to very rapid particle losses for L < 6, or the subauroral duskside region. What are the sources of the waves and what particles and particle energies will be resonant with such waves? We will explore these topics in detail during the presentation.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2017
- Bibcode:
- 2017AGUFMSM42A..06T
- Keywords:
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- 7829 Kinetic waves and instabilities;
- SPACE PLASMA PHYSICS;
- 7836 MHD waves and instabilities;
- SPACE PLASMA PHYSICS;
- 7867 Wave/particle interactions;
- SPACE PLASMA PHYSICS;
- 7954 Magnetic storms;
- SPACE WEATHER