A note on runaway electrons in the presence of kinetic Alfven waves

Details A note on runaway electrons in the presence of kinetic Alfven waves A note on runaway electrons in the presence of kinetic Alfven waves

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...271..675d&link_type=abstract

Astronomy and Astrophysics, Vol. 271, p. 675 (1993)

Astronomy and Astrophysics

Astrophysics

4

Acceleration Of Particles, Plasmas

Scientific paper

It is shown by the quasilinear Fokker-Planck approach that the shear kinetic Alfvén wave (KAW) cannot by itself produce runaway electrons, though it carries an electric field aligned with the ambient magnetic field. However, it can enhance the runaway production rate in case it propagates in presence of a background DC ambient electric field. Therefore, this note answers the question raised by Hollweg (1981) concerning the runaway electrons and nonthermal emission supposedly produced by KWA, without explanation until today. The main result presented here concerning the runaway production rate is valid for space or laboratory plasmas where the KWA and an ambient DC electric field coexist.

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