Quantitative study of guide-field effects on hall reconnection in a laboratory plasma

T. D. Tharp, M. Yamada, Hantao Ji, E. Lawrence, S. Dorfman, C. E. Myers, J. Yoo

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Abstract

The effect of guide field on magnetic reconnection is quantitatively studied by systematically varying an applied guide field in the Magnetic Reconnection Experiment (MRX). The quadrupole field, a signature of two-fluid reconnection at zero guide field, is altered by a finite guide field. It is shown that the reconnection rate is significantly reduced with increasing guide field, and this dependence is explained by a combination of local and global physics: locally, the in-plane Hall currents are reduced, while globally guide field compression produces an increased pressure both within and downstream of the reconnection region.

Original languageEnglish (US)
Article number165002
JournalPhysical review letters
Volume109
Issue number16
DOIs
StatePublished - Oct 18 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Tharp, T. D., Yamada, M., Ji, H., Lawrence, E., Dorfman, S., Myers, C. E., & Yoo, J. (2012). Quantitative study of guide-field effects on hall reconnection in a laboratory plasma. Physical review letters, 109(16), [165002]. https://doi.org/10.1103/PhysRevLett.109.165002