Waves and Instabilities in Magnetospheric Rotating Plasmas

点击翻译按钮获取中文摘要

A magnetospheric configuration gives rise to various peculiar plasma phenomena that pose conundrums to astrophysical studies. We have demonstrated that the plasma self-organizes a stable vortex, in which particles diffuse inward to steepen the density gradient. By electron-cyclotron heating (ECH), we can produce ultra high beta (>0.7) stable (confinement time>0.1s) plasma. We can also produce a pure-electron plasma by emitting electrons from an electron gun placed in the vicinity of the confinement region. The confinement time is longer than 300s. The self-organized confinement is explained by the "distortion" of the phase space of magnetized particles in a strongly inhomogeneous magnetic field.