In collisionless plasmas, electron inertia has a strong influence on the formation of magnetic islands, through magnetic field line reconnection, and on the dynamics of coherent nonlinear structures such as magnetic vortices. We present a physical model for the nonlinear dynamics of such magnetic structures in configurations with a strong magnetic field. This model includes diamagnetic velocities and ion gyro-radius and electron inertia effects and yields the so-called Reduced MagnetoHydroDynamic (RMHD) equations in the appropriate limit. (C) 1997 COSPAR. Published by Elsevier Science Ltd.
|Autori:||Pegoraro F; Kuvshinov BN; Rem J; Schep TJ|
|Titolo:||Electron inertia and small-scale magnetic structures in a nonuniform collisionless plasma|
|Anno del prodotto:||1997|
|Digital Object Identifier (DOI):||10.1016/S0273-1177(97)00083-5|
|Appare nelle tipologie:||1.1 Articolo in rivista|