Quasi-perpendicular to quasi-parallel shock transitions

Details Quasi-perpendicular to quasi-parallel shock transitions Quasi-perpendicular to quasi-parallel shock transitions

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15..171k&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 15, no. 8-9, p. 171-174

Computer Science

1

Dynamic Models, Earth Magnetosphere, Interplanetary Magnetic Fields, Ion Scattering, Magnetic Variations, Shock Fronts, Shock Waves, Computerized Simulation, Data Reduction, Shock Wave Interaction, Shock Wave Profiles, Specular Reflection

Scientific paper

One-dimensional hybrid simulations are performed in order to study the response of a collisionless shock to a sudden change of the upstream magnetic field direction, such as that the shock, which has been quasi-perpendicular, becomes quasi-parallel. Immediately after the transition from quasi-perpendicular to quasi-parallel the shock specularly reflects a large percentage of the incoming solar wind. These ions can subsequently get scattered and become diffuse. At later times, when the quasi-parallel shock is well developed, the reflection rate decreases to 1 - 3%. At this state backstreaming ions are not specularly reflected but already accelerated at the shock to superthermal energies. Leakage of downstream heated ions is only a minor contribution to upstream diffuse ions.

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