Ion leakage, ion reflection, ion heating and shock-front reformation in a simulated supercritical quasi-parallel collisionless shock

Details Ion leakage, ion reflection, ion heating and shock-front reformation in a simulated supercritical quasi-parallel collisionless shock Ion leakage, ion reflection, ion heating and shock-front reformation in a simulated supercritical quasi-parallel collisionless shock

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1041l&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, July 1990, p. 1041-1044.

Physics

36

Ion Density (Concentration), Ion Scattering, Ion Temperature, Shock Fronts, Shock Heating, Boundary Value Problems, Rankine-Hugoniot Relation, Shock Simulators

Scientific paper

Simulation results for a supercritical, quasi-parallel shock are used to investigate the phenomena of ions' reflection, leakage, and heating, as well as shock-front reformation. A possible explanation of the shock-front reformation process involves a highly steepened shock ramp created by insufficient dissipation in the supercritical shock; this ramp can emit large-amplitude whistler waves which then result in the ion-reflection event. Ion reflections furnish further dissipation to counterbalance the nonlinear steepening and thereby reduce the wave amplitude; this terminates the ion-reflection event.

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