Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm41a1441s&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM41A-1441
Physics
2723 Magnetic Reconnection (7526, 7835), 2744 Magnetotail, 2753 Numerical Modeling, 7835 Magnetic Reconnection (2723, 7526), 7924 Forecasting (2722)
Scientific paper
Using a fully three-dimensional Particle-in-cell code, we simulated electrodynamics in an extremely thin current sheet (CS) with and without a guide field. Simulations reveal several features of electron diffusion region as measured from Polar and Cluster in both the magneto-tail and magnetopause region. These features include: (i) ion acceleration by the Hall electric field like in a ion thruster, (ii) bifurcated current sheet by current disruption (iii) step-like structure in the CS magnetic field profile, (iv) spiky perpendicular electric fields in the midst of the CS, (v) generation of current layers parallel to the reconnecting magnetic field in the presence of a guide field, which in turn is considerably enhanced in the CS center and reduced in the outer region, and (vi) electron acceleration to relativistic energies by the electromagnetic turbulence.
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