Resonance Cones below the Ion Cyclotron Frequency: Theory and Experiment
The resonance cones existing below the ion cyclotron frequency, ωci, are shown, theoretically and experimentally, to be the asymptotes of hyperbolic constant-phase surfaces of low-frequency ion acoustic waves. Above ωci the surfaces transform into ellipses that are related to the electrostatic ion cyclotron waves and ion acoustic waves.
© 1976 The American Physical Society. (Received 15 March 1976) The author acknowledges a useful discussion with M. Ono and also thanks J. Johnson and J. Taylor for their technical assistance. Work supported by U.S. Energy Research and Development Administration Contract No. E(11-1)-3073.
Published - BELprl76.pdf