Emission of whistler and electromagnetic waves from an electron shear-flowinstability in a plasma

Using a two-dimensional electromagnetic and relativistic particle code, we show that both whistler and electromagnetic waves can be emitted from a reg ion where an electron shear-flow instability occurs in electron-ion plasma. The emission mechanism of the whistler waves is due to the generation of e lectron Hall current, which is produced by the electron vortex motions asso ciated with the electron shear-flow instability. (C) 2000 Published by Else vier Science B.V. All rights reserved.