Three-dimensional, impulsivemagnetic reconnection in a laboratory plasma

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

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Impulsive, local, 3-D reconnection is identified for the first time in a laboratory current sheet. The events observed in the Magnetic Reconnection Experiment are characterized by large local gradients in the third direction and cannot be explained by 2-D models. Detailed measurements show that the ejection of flux rope structures from the current sheet plays a key role in these events. By contrast, even though electromagnetic fluctuations in the lower hybrid frequency range are also observed concurrently with the impulsive behavior, they are not the key physics responsible. A qualitative, 3-D, two-fluid model is proposed to explain the observations. The experimental results may be particularly applicable to space and astrophysical plasmas where impulsive reconnection occurs.

Original languageEnglish (US)
Pages (from-to)233-238
Number of pages6
JournalGeophysical Research Letters
Volume40
Issue number2
DOIs
StatePublished - Jan 28 2013

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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    Dorfman, S., Ji, H., Yamada, M., Yoo, J., Lawrence, E., Myers, C., & Tharp, T. D. (2013). Three-dimensional, impulsivemagnetic reconnection in a laboratory plasma. Geophysical Research Letters, 40(2), 233-238. https://doi.org/10.1029/2012GL054574