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Double layers and plasma-wave resistivity in extragalactic jets: cavity formation and radio-wave emission

Published online by Cambridge University Press:  09 March 2009

Joseph E. Borovsky
Affiliation:
Space Plasma Physics Group, Los Alamos National Laboratory, D438, Los Alamos, N.M. 87545

Abstract

Current driven electrostatic-wave- and electromagnetic-wave-produced resistivities do not occur in extragalactic jets for estimated values of the carried currents. Strong plasma double layers, however, may exist within self-maintained density cavities. The relativistic double-layer-emitted electron and ion beams drive plasma-wave resistivities in the low- and high-potential plasma adjacent to the double layers. The double-layeremitted electron beams may also emit polarized radio waves via a collectivebremsstrahlung process mediated by electrostatic two-stream instabilities.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1987

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