Colliding plasma structures - Current sheet and perpendicular shock

Details Colliding plasma structures - Current sheet and perpendicular shock Colliding plasma structures - Current sheet and perpendicular shock

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....9311327b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, Oct. 1, 1988, p. 11327-11340. Navy-supported research.

Physics

30

Collisional Plasmas, Current Sheets, Shock Wave Interaction, Space Plasmas, Incident Radiation, Ion Beams, Magnetosheath, Supercritical Flow

Scientific paper

Results of a one-dimensional simulation of the interaction of a current sheet and a supercritical perpendicular shock in a collisionless plasma are presented. The low-field region of the current sheet passes through the shock, allowing, for a short time, the complete reflection of the incident flow at the transition of the magnetic field to its downstream value. The counterstreaming ion beams relaunch the shock, while the low-field region remains downstream. The plasma in the low field region is unshocked but develops a complex multistream configuration, which in time develops to a more uniform distribution. The implications of the simulation results for observations within the magnetosheath and of active current sheets upstream of the bow shock are discussed.

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