Resonant surface waves and instabilities in finite β plasmas

摘要: Magnetohydrodynamic surface waves are studied at an interface of finite thickness separating two homogeneous arbitrary β plasmas which in parallel motion with respect to each other and permeated by magnetic fields. It is assumed that the density decreases field strength increases across interface. The model representative mantle-like boundary layer fast flowing magnetosheath from tail region magnetosphere. All existing wave modes classified, their main properties investigated, analytical expressions for critical velocities obtained. resonant flow instability (RFI) Kelvin–Helmholtz when inhomogeneous taken into account. theory negative energy applied predict behavior interactions such plasmas. Growth rates RFIs examined under various conditions. dependence veloc...