Magnetospheric and solar radiation from loss-cone driven test instabilities

Details Magnetospheric and solar radiation from loss-cone driven test instabilities Magnetospheric and solar radiation from loss-cone driven test instabilities

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.251..331m&link_type=abstract

In ESA Proceedings of the Joint Varenna-Abastumani International School and Workshop on Plasma Astrophysics p 331-336 (SEE N87-

Astronomy and Astrophysics

Astrophysics

Lossy Media, Magnetohydrodynamic Stability, Solar Radio Emission, Terrestrial Radiation, Electron Cyclotron Heating, Electrostatic Waves, Fine Structure, Masers, Plasma Frequencies

Scientific paper

Loss-cone driven instabilities are thought to generate certain intense planetary and solar radio emissions. If the electron cyclotron frequency Ωe and the plasma frequency ωp satisfy Ωe/ωp ⪆ 1, electron cyclotron maser emission produces intense radiation, predominantly in the magnetoionic x mode. However if Ωe/ωp very low 1, plasma emission occurs, generating Langmuir waves which can interact with other waves or coalesce to produce weakly polarized escaping radiation. The theories of these two coherent emission mechanisms are reviewed. Extensions of the basic electron cyclotron maser theory are also discussed.

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