Generation and propagation of kilometric radiation in the auroral plasma cavity

Details Generation and propagation of kilometric radiation in the auroral plasma cavity Generation and propagation of kilometric radiation in the auroral plasma cavity

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94..129p&link_type=abstract

(Chapman Conference on Plasma Waves and Instabilities in Magnetospheres and at Comets, Sendai, Japan, Oct. 12-16, 1987) Journal

Physics

32

Auroral Zones, Kilometric Waves, Magnetohydrodynamic Stability, Space Plasmas, Wave Propagation, High Energy Electrons, Poynting Theorem, Ray Tracing, Relativistic Effects, Wave Generation

Scientific paper

The two-dimensional particle simulations and three-dimensional ray-tracing calculations presently used to characterize the generation and propagation of EM radiation due to the auroral plasma cavity's electron cyclotron maser instability incorporate a continuous flow of primary energetic electrons along the magnetic field. The magnetic field gradient is found to be unimportant in accounting for various quasi-local properties of the maser instability. The maser instability can produce the observed amplification of auroral kilometric radiation above cosmic background levels within a distance smaller than the dimensions of the auroral cavity.

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