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

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.


Publication status:
Authors: Horne, Richard B. ORCIDORCID record for Richard B. Horne, Jones, D., Kimura, I., Sawada, A.

Editors: Chang, T., Crew, G.B., Jasperse, J.R.

On this site: Richard Horne
1 January, 1990
In: Chang, T., Crew, G.B., Jasperse, J.R. (eds.). Physics of space plasmas, Cambridge, Mass., Scientific Publishers, Inc., 415-420.