Parallel electric field of a mirror kinetic Alfvén wave

Details Parallel electric field of a mirror kinetic Alfvén wave Parallel electric field of a mirror kinetic Alfvén wave

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jgr...10510729n&link_type=abstract

Journal of Geophysical Research, Volume 105, Issue A5, p. 10729-10738

Physics

13

Magnetospheric Physics: Electric Fields, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Mhd Waves And Instabilities

Scientific paper

It has been shown that an Alfvén wave can create an electric field along the magnetic field line due to mirror effect. In a converging magnetic field, mobility of electrons is restricted by the mirror force and a parallel electric field must exist to carry a field aligned current associated with Alfvén waves. The parallel electric field created by this mechanism can be much larger than that of a kinetic or inertial Alfvén wave when the wave frequency is low enough. The essential mechanism of parallel electric field generation is reduced to the static mirror model in the limit where the wave frequency vanishes.

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