Equilibria of a rigidly rotating, fully ionized plasma column

摘要

Due to the quadratic dependence of the centrifugal force on the rotation frequency, a singlehyphen;fluid model of a rigidly rotating, semihyphen;infinite plasma column has two equilibrium solutions. When the potential and pressure gradients across the column nearly balance each other, the rotation equilibria correspond to a low frequency which is small compared to the ion cyclotron frequency, and a high frequency which is roughly equal to the negative of the cyclotron frequency. This communication describes the different plasma properties which characterize these two equilibria.