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Scaling of asymmetric Hall magnetic reconnection
Department of Physics and Astronomy, University of Delaware, Newark, Delaware, USA
Department of Physics and Astronomy, University of Delaware, Newark, Delaware, USA
The scaling of the reconnection rate and ion and electron outflow speeds with upstream magnetic field strengths and plasma mass densities during asymmetric collisionless (Hall) reconnection without a guide field is studied using two-dimensional two-fluid simulations. The results agree with a recent theory by Cassak and Shay (2007). It is found that the normalized reconnection rate is on the order of 0.1 and is independent of the asymmetry in field or density. Signatures of asymmetric Hall reconnection and applications to the magnetopause are briefly discussed.
Received 7 July 2008; accepted 20 August 2008; published 2 October 2008.
Citation: (2008), Scaling of asymmetric Hall magnetic reconnection, Geophys. Res. Lett., 35, L19102, doi:10.1029/2008GL035268.
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