Mathematics – Probability
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm33c..06s&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM33C-06
Mathematics
Probability
4468 Probability Distributions, Heavy And Fat-Tailed (3265), 4490 Turbulence (3379, 4568, 7863), 7835 Magnetic Reconnection (2723, 7526), 7839 Nonlinear Phenomena (4400, 6944), 7863 Turbulence (4490)
Scientific paper
Thin current sheets the size of the order of the ion inertial length exhibiting the signature of local magnetic reconnection are shown to be abundant in an intermittent high-β plasma turbulent environment, in the outer magnetosheath downstream of the Earth's quasi-parallel bow shock. The magnetic field turbulent spectra follow a power law scaling f^{-2.1} for large magnetohydrodynamic scales, but show strong intermittency at the ion larmor and ion inertial scales, suggesting that the observed reconnection occurs due to interaction of short scale coherent structures of opposite magnetic polarity. The discovery of reconnecting current sheets in association with intermittency and coherent structures can have important implications for dissipation in turbulent plasmas.
Bale Stuart D.
Mozer F.
Retinò Alessandro
Sundkvist David
Vaivads Andris
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