Two-dimensional particle simulation of a perpendicular shock with a shock rest frame model

Details Two-dimensional particle simulation of a perpendicular shock with a shock rest frame model Two-dimensional particle simulation of a perpendicular shock with a shock rest frame model

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh31a1461y&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH31A-1461

Physics

Plasma Physics

[2753] Magnetospheric Physics / Numerical Modeling, [7851] Space Plasma Physics / Shock Waves

Scientific paper

A two-dimensional shock-rest-frame model for particle simulations is developed. This model does not need a huge simulation domain in the propagation direction of the shock wave as previous simulation models do. We performed a two-dimensional full particle simulation of a perpendicular collisionless shock and compared with one-dimensional simulation results. In both simulations, the excited shock waves show almost the same time evolution, periodically reforming at the timescale of the downstream ion gyro-period. In the two-dimensional simulation, electrons are thermalized along the transverse magnetic field, and electromagnetic whistler mode waves are excited in the shock front region. The amplitude of the exited whistler mode waves is not so strong and the shock magnetic field keeps almost one-dimensional structure. The two-dimensional simulation also shows the absence of electrostatic solitary structures in the shock foot region, which is necessary for electron shock surfing acceleration.

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