Journal of Plasma Physics

Research Article

Higher-order electron modes in a two-electron-temperature plasma

R. L. Macea1 and M. A. Hellberga1

a1 Plasma Physics Research Institute, Department of Physics, University of Natal, Durban, South Africa

Abstract

We discuss critical curves that allow us to predict, qualitatively, the topological behaviour of higher-order modes in a two-electron-temperature plasma as wavenumber and hot electron fraction are varied. The relationship of these higher-order modes to the electron-acoustic wave is elucidated.

(Received May 18 1989)

(Revised January 29 1990)