Magnetic reconnection in two-dimensional MHD turbulence

Details Magnetic reconnection in two-dimensional MHD turbulence Magnetic reconnection in two-dimensional MHD turbulence

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm31a1703s&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SM31A-1703

Physics

2149 Mhd Waves And Turbulence (2752, 6050, 7836), 2723 Magnetic Reconnection (7526, 7835), 2752 Mhd Waves And Instabilities (2149, 6050, 7836), 7526 Magnetic Reconnection (2723, 7835), 7863 Turbulence (4490)

Scientific paper

The nonlinear dynamics of magnetic reconnection in broadband turbulence is investigated through direct numerical simulations of decaying, compressible and incompressible, two-dimensional magnetohydrodynamics (MHD). Complex processes of reconnection between magnetic islands (or magnetic vortices), of different size and field strengths, locally occur. Matching classical turbulence analysis with the Sweet-Parker theory, the main statistical features of these multi-scale reconnection events are identified. Locally, magnetic reconnection can be described through a steady state, asymmetric, Sweet-Parker model, in which parameters controlling reconnection rate are determined by the turbulence. Research supported in part by NASA (NNX07AR48G, NNG06GD47G, NNX08AI47G) and NSF (ATM0752135 ATM 0539995).

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