New mechanism for electron heating in shocks

Details New mechanism for electron heating in shocks New mechanism for electron heating in shocks

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvl..70.1259b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 70, no. 9, p. 1259-1262.

Physics

35

Bow Waves, Electron Trajectories, Shock Fronts, Shock Heating, Shock Waves, Collisionless Plasmas, Computerized Simulation, Electromagnetic Fields, Electron Distribution, Trajectory Analysis

Scientific paper

Electron trajectories diverge exponentially in a sufficiently small-scale electrostatic field with a static external magnetic field. This electron trajectory instability results in electron heating in the field structure typical for the collisionless shock front ramp. The magnitude of the effect is sufficient to explain the observed heating at the Earth's bow shock and interplanetary shocks. The heating features are consistent with the observations.

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