HR: 09:30h
AN: SH51D-06    [Abstracts]
TI: Magnetic Reconnection Rate in Collisionless Plasma.
AU: Patel, K
EM: Kiran.D.Patel.1@gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: * Kuznetsova, M M
EM: masha@elbrus.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: Hesse, M
SH51D-06 AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: Rastatter, L
SH51D-06 AF: NASA Goddard Space Flight Center, Code 612.3, Greenbelt, MD 20771 United States
AU: Rastatter, L
SH51D-06 AF: University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109 United States
AU: Toth, G
SH51D-06 AF: University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109 United States
AU: Gombosi, T
SH51D-06 AF: University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109 United States
AB: The physical processes controlling the magnetic reconnection rate are of principle importance for many phenomena in space plasma. Comparative study of magnetic reconnection in kinetic and fluid simulations demonstrated that the reconnection rate is controlled by ion nongyrotropic behavior near the reconnection site. We will demonstrate that reconnection electric field can be estimated as a convection electric field v x B at the edge of the non-MHD diffusion region and can be incorporated into the MHD description. We employ small scale and global MHD simulation codes and introduce non-ideal corrections to the induction equation in terms of nongyrotropic corrections to the electric field. The role of the nongyrotropic effects near the reconnection site on the global dynamics will be analyzed.
DE: 2700 MAGNETOSPHERIC PHYSICS (6939)
DE: 2723 Magnetic reconnection (7526, 7835)
DE: 7827 Kinetic and MHD theory
DE: 7835 Magnetic reconnection (2723, 7526)
DE: 7859 Transport processes
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005