A new paradigm for 3D Collisionless Magnetic Reconnection

A new paradigm is suggested for 3D magnetic reconnection where the interaction of reconnection processes with current aligned instabilities plays an important role. According to the new paradigm, the initial equilibrium is rendered unstable by current aligned instabilities (lower-hybrid drift instability first, drift-kink instability later) and the non-uniform development of kinking modes leads to a compression of magnetic field lines in certain locations and a rarefaction in others. The areas where the flow is compressional are subjected to a driven reconnection process. In the present paper we illustrate this series of events with a selection of simulation results.

[1]  J. U. Brackbill,et al.  FLIP MHD: a particle-cell method for magnetohydrodynamics , 1991 .

[2]  J. Brackbill An adaptive grid with directional control , 1993 .

[3]  W. Daughton The unstable eigenmodes of a neutral sheet , 1999 .

[4]  H. Karimabadi,et al.  Consequences of particle conservation along a flux surface for magnetotail tearing , 1996 .

[5]  R. Sagdeev,et al.  Peeling of convection cells and the generation of sheared flow , 1992 .

[6]  J. Brackbill,et al.  The Kelvin–Helmholtz instability, differential rotation, and three-dimensional, localized, magnetic reconnection , 2002 .

[7]  Giovanni Lapenta,et al.  A kinetic theory for the drift-kink instability , 1997 .

[8]  Dieter Biskamp,et al.  Magnetic reconnection in plasmas , 2000 .

[9]  J. Brackbill,et al.  Nonlinear evolution of the lower hybrid drift instability: Current sheet thinning and kinking , 2002 .

[10]  J. Brackbill,et al.  Transient magnetic reconnection and unstable shear layers. , 2000, Physical review letters.

[11]  Jeremiah Brackbill,et al.  Simulation of Low-Frequency, Electromagnetic Phenomena in Plasmas , 1985 .

[12]  J. Birn,et al.  Self‐consistent theory of three‐dimensional convection in the geomagnetic tail , 1983 .

[13]  Paolo Ricci,et al.  A simplified implicit maxwell solver , 2002 .

[14]  T. Wiegelmann,et al.  Kinetic simulations of the coupling between current instabilities and reconnection in thin current sheets , 2000 .

[15]  W. Daughton Nonlinear dynamics of thin current sheets , 2002 .

[16]  J. Brackbill,et al.  The unexpected role of the lower hybrid drift instability in magnetic reconnection in three dimensions , 2002 .

[17]  Giovanni Lapenta,et al.  3D reconnection due to oblique modes: a simulation of Harris current sheets , 2000 .

[18]  Hidalgo,et al.  In search of the elusive zonal flow using cross-bicoherence analysis , 2000, Physical review letters.