HR: 0800h
AN: SM31B-0421    [Abstracts]
TI: The three-dimensional MHD simulation studies of the structure and dynamics at the leading part of a reconnection jet
AU: TanDokoro, R
EM: rtdokoro@geo.titech.ac.jp
AF: Tokyo Institute of Technology, 2-12-2 Ookayama, Meguro-ku, Tokyo, 152-8551 Japan
AU: * Fujimoto, M
EM: fujimoto@geo.titech.ac.jp
AF: Tokyo Institute of Technology, 2-12-2 Ookayama, Meguro-ku, Tokyo, 152-8551 Japan
AB: Magnetic reconnection is the one of the most essential phenomenon in magnetospheric physics, solar physics and laboratory experiments. It is well-known that fast plasma flows are generated in the reconnection process, so called the reconnection jet. We focused on the three-dimensionality of the structure and dynamics at the leading part of the reconnection jet and performed three-dimensional MHD simulations. We found that the leading part of the jet is likely to be unstable to two types of the interchange instability, specifically the Rayleigh-Taylor instability and ballooning instability. These two instabilities do not seem to compete with each other and the jet-front instability arises via complimentary effects of the two instabilities. We will discuss the detail of the dynamics at the leading part of the reconnection jet, and, additionally, a possible application of the process to a phenomenon observed in the solar flares will be discussed.
DE: 7519 Flares
DE: 7835 Magnetic reconnection (2723, 7526)
DE: 7836 MHD waves and instabilities (2149, 2752, 6050)
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005