Turbulent heating of heavy ions on auroral field lines

Details Turbulent heating of heavy ions on auroral field lines Turbulent heating of heavy ions on auroral field lines

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.2235a&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, April 1, 1984, p. 2235-2250.

Physics

71

Auroral Zones, Heavy Ions, Ion Cyclotron Radiation, Particle Acceleration, Plasma Heating, Plasma Turbulence, Electrostatic Waves, Hydrogen Ions, Magnetohydrodynamic Stability, Oxygen Ions

Scientific paper

Electrostatic ion cyclotron turbulence and the associated acceleration of ions on auroral field lines are investigated analytically and by plasma simulations. The auroral plasma is assumed to consist of drifting electrons and stationary hydrogen and oxygen ions. It is found that for a given critical drift, the maximum ion perpendicular heating is generally larger for oxygen ions than for hydrogen ions. Simulation results show that unless the oxygen ions are a minority species, oxygen transverse heating generally exceeds that of hydrogen ions. Theory and numerical simulations are in good agreement.

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