Magnetic Reconnection and Intermittent Turbulence in the Solar Wind
Abstract
A statistical relationship between magnetic reconnection, current sheets and intermittent turbulence is reported for the first time using in-situ solar wind measurements from the Wind spacecraft at 1 AU. We find Petschek-like reconnection exhausts and currents sheets are concentrated in spatially inhomogeneous rare large amplitude fluctuations, such that 87-92% and 9-10% respectively are located within the most intermittent 1% of turbulent fluctuations. While most current sheets do not appear to be undergoing reconnection, the most intermittent have an increased likelihood of being reconnection sites. Hence, there is evidence for a hierarchy of intermittent structures that are increasingly linked to current sheets, which in turn are ever more associated with magnetic reconnection. These results could have far reaching implications for non-uniform dissipation in all turbulent plasmas.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2013
- Bibcode:
- 2013AGUFMSH51B2097S
- Keywords:
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- 7835 SPACE PLASMA PHYSICS Magnetic reconnection;
- 2134 INTERPLANETARY PHYSICS Interplanetary magnetic fields;
- 2149 INTERPLANETARY PHYSICS MHD waves and turbulence;
- 7863 SPACE PLASMA PHYSICS Turbulence