High-frequency waves generated by auroral electrons

Details High-frequency waves generated by auroral electrons High-frequency waves generated by auroral electrons

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....9112079m&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Nov. 1, 1986, p. 12079-12088.

Computer Science

Sound

44

Auroral Arcs, Electron Distribution, High Energy Electrons, Plasma Waves, Rocket Sounding, High Frequencies, Particle Interactions, Plasma Frequencies, Rocket-Borne Instruments, Wave Interaction

Scientific paper

Measurements of marginally unstable electron distribution functions and high-frequency plasma waves were made on a sounding rocket flight through a quiet auroral arc. The waves appeared near the electron plasma frequency and had a large parallel electric field component such that k-parallel is greater than k-perpendicular. The appearance of these waves was correlated with the presence of marginally unstable parallel electron distributions. Analysis has shown that the waves were produced by parallel electron distribution function greater than 0 rather than the small perpendicular electron distribution function greater than 0 features. Wave levels and growth rates inside the arc were small, and nonlinear wave-wave and wave-particle interactions appear to have been minimal.

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