The Role of Equilibrium Current Sheet Width on the Onset of Fast Collisionless Reconnection

Details The Role of Equilibrium Current Sheet Width on the Onset of Fast Collisionless Reconnection The Role of Equilibrium Current Sheet Width on the Onset of Fast Collisionless Reconnection

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsm32a..14s&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SM32A-14

Physics

7835 Magnetic Reconnection, 7843 Numerical Simulation Studies

Scientific paper

Previous studies of collisionless magnetic reconnection, specifically the GEM challenge results, have shown that the physics of the Hall term allows reconnection rates much faster than those seen with a constant resistivity. However, the Hall term only becomes important at length scales comparable to the ion inertial length, which may be quite small compared to the equilibrium current sheet width. We examine the evolution of reconnection in a plasma with an initial current sheet width significantly greater than an ion inertial length. We simulate this plasma using a two-fluid model with the Hall term and electron inertia.

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