Magnetic Reconnection in Two-Dimensional Magnetohydrodynamic Turbulence

Details Magnetic Reconnection in Two-Dimensional Magnetohydrodynamic Turbulence Magnetic Reconnection in Two-Dimensional Magnetohydrodynamic Turbulence

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrvl.102k5003s&link_type=abstract

Physical Review Letters, vol. 102, Issue 11, id. 115003

Astronomy and Astrophysics

Astrophysics

33

Magnetic Reconnection, Interplanetary Magnetic Fields, Mhd Waves, Plasma Waves, Turbulence, Magnetic Reconnection

Scientific paper

Systematic analysis of numerical simulations of two-dimensional magnetohydrodynamic turbulence reveals the presence of a large number of X-type neutral points where magnetic reconnection occurs. We examine the statistical properties of this ensemble of reconnection events that are spontaneously generated by turbulence. The associated reconnection rates are distributed over a wide range of values and scales with the geometry of the diffusion region. Locally, these events can be described through a variant of the Sweet-Parker model, in which the parameters are externally controlled by turbulence. This new perspective on reconnection is relevant in space and astrophysical contexts, where plasma is generally in a fully turbulent regime.

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