HR: 16:45h
AN: SH32D-04    [PDF]
TI: Two-Dimensionally Isolated Potential Structure in Foot Region of Quasi-Perpendicular Shocks
AU: * Sugiyama, T
EM: tsugi@kurasc.kyoto-u.ac.jp
AF: Radio Science Center for Space and Atmosphere, Kyoto University, Gokasho, Uji, KY 611-0011 Japan
AU: Omura, Y
EM: omura@kurasc.kyoto-u.ac.jp
AF: Radio Science Center for Space and Atmosphere, Kyoto University, Gokasho, Uji, KY 611-0011 Japan
AU: Matsumoto, H
EM: matsumot@kurasc.kyoto-u.ac.jp
AF: Radio Science Center for Space and Atmosphere, Kyoto University, Gokasho, Uji, KY 611-0011 Japan
AU: Fujimoto, M
EM: fujimoto@geo.titech.ac.jp
AF: Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, KY 152-8551 Japan
AB: We have performed full-particle shock simulations in a two-dimensional system to study how the shock tangential structure is important for electrostatic potential structures, which are excited in the foot region of a quasi-perpendicular shock. In the two-dimensional system, the shape of the electrostatic potential structure is not stable and is quickly transformed to isolated structures in both shock normal and tangential directions. The solitary structure is a result of an electromagnetic effect. The electric currents excited by the electron ExB drift motion diverge the potential structures.
DE: 7800 SPACE PLASMA PHYSICS
DE: 7843 Numerical simulation studies
DE: 7851 Shock waves
DE: 7867 Wave/particle interactions
DE: 7871 Waves and instabilities
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting