Kinetic Instability of the Ion Acoustic Mode in Permeating Plasma of Electron-Positron and Ion

摘要

Kinetic instability of the ion acoustic mode is observed in permeating plasma of electron, positron, and ion in a similar background plasma system. The linear growth of the wave is excited only when the streaming speed of the flowing plasma reaches a critical speed for all temperature ratios. Presence of positron, however, only shows a quantitative modification in the critical speed of the flowing plasma.