The linear dispersion relation and the spatial structure of high frequency instabilities, with a mixed tearing-bending character is studied. These instabilities are driven by the electron velocity gradient in a collisionless electron plasma moving against a background of immobile neutralizing ions in an inhomogeneous magnetic field. As the angle between the perturbations and the magnetic field lines is varied, perturbations change from the tearing type (parallel propagation) to the bending type (perpendicular propagation). (C) 1999 American Institute of Physics. [S1070-664X(99)01406-8].
|Autori:||Califano F; Prandi R; Pegoraro F; Bulanov SV|
|Titolo:||Two-dimensional electron-magnetohydrodynamic instabilities|
|Anno del prodotto:||1999|
|Digital Object Identifier (DOI):||10.1063/1.873538|
|Appare nelle tipologie:||1.1 Articolo in rivista|