Reconnection in the Earth's Plasma Sheet

Details Reconnection in the Earth's Plasma Sheet Reconnection in the Earth's Plasma Sheet

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm32b..03s&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM32B-03

Physics

2748 Magnetotail Boundary Layers, 7835 Magnetic Reconnection, 7859 Transport Processes

Scientific paper

Magnetic reconnection plays an important role in the dynamics of the magnetotail by releasing large amounts of stored magnetic energy in the lobes and releasing plasmoids and flux ropes down the tail. It has recently been shown that the decoupling of the electron and ion motion due to the much larger mass of the ions allows fast reconnection to occur in collisionless systems. This decoupling of the ions and electrons due to the Hall term in Ohm's law is manifested either as whistler physics or as kinetic Alfven physics, depending on the angle between the reconnecting field lines. The nature of this fast collisionless reconnection will be reviewed. In addition, the role of non-ideal physics in the shocks associated with reconnection, and instabilities and turbulence in three dimensional reconnection will also be discussed. Results from 2D and 3D simulations of reconnection using two-fluid, hybrid, and full particle simulations will be presented.

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