On the question of hysteresis in Hall magnetohydrodynamic reconnection

Brian P. Sullivan, A. Bhattacharjee, Yi Min Huang

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Controversy has been raised regarding the cause of hysteresis, or bistability, of solutions to the equations that govern the geometry of the reconnection region in Hall magnetohydrodynamic (MHD) systems. This brief communication presents a comparison of the frameworks within which this controversy has arisen and illustrates that the Hall MHD hysteresis originally discovered numerically by Cassak [Phys. Rev. Lett. 95, 235002 (2005)] is a different phenomenon from that recently reported by Zocco [Phys. Plasmas 16, 110703 (2009)] on the basis of analysis and simulations in electron MHD with finite electron inertia. We demonstrate that the analytic prediction of hysteresis in EMHD does not describe or explain the hysteresis originally reported in Hall MHD, which is shown to persist even in the absence of electron inertia.

Original languageEnglish (US)
Article number114507
JournalPhysics of Plasmas
Volume17
Issue number11
DOIs
StatePublished - Nov 1 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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