Ray tracing of auroral Z mode radiation, AKR and auroral hiss

Horne, Richard B. ORCID: https://orcid.org/0000-0002-0412-6407; Jones, D.; Kimura, I.; Sawada, A.. 1990 Ray tracing of auroral Z mode radiation, AKR and auroral hiss. In: Chang, T.; Crew, G.B.; Jasperse, J.R., (eds.) Physics of space plasmas. Cambridge, Mass., Scientific Publishers, Inc., 415-420. (SPI conference proceedings and reprint series, 9).

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Abstract/Summary

While observed frequency bandwidths of auroral Z mode radiation cannot be directly accounted for in terms of direct cyclotron maser instability generation, ray tracing in a hot plasma indicates that if the radiation near a plasma frequency lower than the gyrofrequency, the observed bandwidths are explainable in terms of upward propagation away from the earth. An auroral Z-mode generation mechanism is proposed involving mode conversion from O-mode auroral kilometric radiation (AKR) at the plasma frequency, as well as mode conversion from upgoing auroral hiss. Ray tracings in the O mode identify a possible AKR source region along L = 8.55.

Item Type:	Publication - Book Section
Date made live:	09 Jul 2018 10:39 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/520471

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