Heating of upflowing auroral H(+) and O(+) beams - Results from quasi-linear theory

Details Heating of upflowing auroral H(+) and O(+) beams - Results from quasi-linear theory Heating of upflowing auroral H(+) and O(+) beams - Results from quasi-linear theory

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94..319l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Jan. 1, 1989, p. 319-328.

Physics

4

Auroral Zones, Hydrogen Ions, Ion Beams, Ionospheric Heating, Lines Of Force, Oxygen Ions, Field Aligned Currents, Ionospheric Composition, Plasma-Particle Interactions, Spatial Distribution

Scientific paper

A stability analysis of satellite-observed upgoing H(+) and O(+) beams in the auroral zone near midnight reveals the instability of an oblique H(+) acoustic mode. The wave involves a cyclotron resonance with O(+) and a Landau resonance with H(+). Interactions with this wave primarily involve a transfer of parallel H(+) streaming energy to perpendicular O(+) thermal energy. The rate of ion heating produced by such interactions is determined quantitatively in the context of quasi-linear theory.

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