Electron heating in quasiperpendicular shocks

Details Electron heating in quasiperpendicular shocks Electron heating in quasiperpendicular shocks

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15..225g&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 15, no. 8-9, p. 225-233

Physics

8

Collisionless Plasmas, Electron Cyclotron Heating, Electron Energy, Normal Shock Waves, Shock Fronts, Adiabatic Flow, Electron Trajectories, Hydrodynamics, Temperature Distribution

Scientific paper

Electrons move in the shock ramp fields prescribed by ions. Observed ramp thicknesses and cross-shock potentials imply that in many cases adiabaticity in the electron motion in the ramp is broken. A substantial fraction of the cross-shock potential is transferred into the electron gyration energy. As a result, electrons experience direct overradiabatic perpendicular heating. The heating magnitude is in agreement with observed values. Numerically obtained downstream distributions demonstrate a clear tendency to be flattopped both in parallel and perpendicular directions.

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