Are observed broadband plasma wave amplitudes large enough to explain the enhanced electron temperatures of the high-latitude E region?

Details Are observed broadband plasma wave amplitudes large enough to explain the enhanced electron temperatures of the high-latitude E region? Are observed broadband plasma wave amplitudes large enough to explain the enhanced electron temperatures of the high-latitude E region?

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.2843s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, March 1, 1985, p. 2843-2850.

Physics

48

Broadband, E Region, Electron Energy, Magnetohydrodynamic Waves, Plasma Heating, Space Plasmas, Amplitudes, Equatorial Atmosphere, Radio Frequency Heating

Scientific paper

The possibility that the electron heating that has been observed in the high-latitude E region during disturbed periods is produced by low-frequency broadband waves of the type that is measured on rockets has been studied. It was found that low-frequency waves can be responsible for the observed electron temperature enhancements if a significant portion of the large amplitude waves does not have a wave vector exactly perpendicular to the magnetic field, but rather if their wavevector is a few (2-5) degrees away from perpendicularity. It is shown that this aspect angle constraint is present because in order to heat the electrons efficiently with low-frequency waves in the magnetized E region a large enough component of the perturbed electric field in the magnetic field direction is needed.

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