Physics – Plasma Physics
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgra..108.1182n&link_type=abstract
Journal of Geophysical Research (Space Physics), Volume 108, Issue A5, pp. SSH 3-1, CiteID 1182, DOI 10.1029/2002JA009671
Physics
Plasma Physics
2
Space Plasma Physics: Shock Waves, Space Plasma Physics: Numerical Simulation Studies, Space Plasma Physics: Charged Particle Motion And Acceleration, Space Plasma Physics: Wave/Particle Interactions
Scientific paper
The properties of reformation in perpendicular collisionless shocks are investigated by means of a one-dimensional particle-in-cell simulation. Reformation is associated with ion reflection at the shock ramp and subsequent ion gyromotion in the upstream region. However, if ions are reflected continuously at the ramp, why does the shock reform intermittently at sufficiently high Mach number? The simulations show that the shock potential changes dramatically through the re-formation cycle, so that it is this potential variation which leads to the intermittent response of the shock.
Gary Peter S.
Kojima Hirotsugu
Matsumoto Hiroshi
Nishimura Kazumi
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