Effects of global boundary and local collisionality on magnetic reconnection in a laboratory plasma

A. Kuritsyn, H. Ji, S. P. Gerhardt, Y. Ren, M. Yamada

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The magnetic reconnection process is studied in a wide range of operating conditions in the well-controlled Magnetic Reconnection Experiment. The reconnection rate is observed to be a function of both global (system size) and local (collisionality) plasma parameters. When only local collisionality is lowered, the current sheet is shortened while effective resistivity is enhanced, both accelerating reconnection rates. At a fixed collisionality, the current sheet length increases with system size, resulting in the reduction of the reconnection rate. These results quantitatively agree with a generalized Sweet-Parker analysis.

Original languageEnglish (US)
Article numberL16106
JournalGeophysical Research Letters
Volume34
Issue number16
DOIs
StatePublished - Aug 28 2007

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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