SM51E-2600
An Intrinsically Three-Dimensional Reconnection Process in Near-Earth Plasma Sheet*

Friday, 18 December 2015
Poster Hall (Moscone South)
Ping Zhu, University of Science and Technology of China, Key Laboratory of Geospace Environment, Chinese Academy of Sciences, Hefei, China
Abstract:
A magnetic reconnection process in the near-Earth plasma sheet has been revealed to be intrinsically three-dimensional both geometrically and dynamically despite the spatial invariance of the original current sheet in the equilibrium current direction. Such a reconnection process is induced by the nonlinear development of an ideal MHD ballooning instability that leads to the appearance of quasi-separatrix layers in a generalized Harris sheet. The spatial distribution and structure of these quasi-separatrix layers, as well as their temporal evolution, indicate that the associated magnetic reconnection can only occur in the three-dimensional geometry which is irreducible to a two-dimensional reconnection process.

*Supported by National Natural Science Foundation of China Grant No. 41474143.