Geophysical Research Letters
American Geophysical Union
Numerical studies on the interaction of electrostatic hydrogen cyclotron (EHC) waves with light ionospheric ions, such as He+, show that when the wave number ratio k⊥/kll ≤ 10 resonant effects are important in the stochastic heating of the ions. When k⊥/kll > 10 an appreciable acceleration occurs even though the cyclotron‐resonant effects are absent. As the parallel wave number increases, causing k⊥/kll to decrease (< 10), the number of accelerated ions and the perpendicular and parallel energization increase.
Singh, N., R. W. Schunk, and J. J. Sojka (1982), Cyclotron resonance effects on stochastic acceleration of light ionospheric ions, Geophys. Res. Lett., 9(9), 1053–1056, doi:10.1029/GL009i009p01053.