On the physical interpretation of Malyshkin’s (2008) model of resistive Hall magnetohydrodynamic reconnection

Uzdensky, Dmitri A.
April 2009
Physics of Plasmas;Apr2009, Vol. 16 Issue 4, p040702
Academic Journal
A simple Sweet–Parker-like model for the electron current layer in resistive Hall magnetohydrodynamic reconnection is presented, with the focus on the small-resistivity limit. The derivation readily recovers the main results obtained recently by Malyshkin [Phys. Rev. Lett. 101, 225001 (2008)], but is much quicker and more physically transparent. In particular, it highlights the role of resistive drag in determining the electron outflow velocity. The principal limitations of any such approach are discussed.


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