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Detailed Reference Information |
Ambrosiano, J., Matthaeus, W., Goldstein, M.L. and Plante, D. (1988). Test particle acceleration in turbulent reconnecting magnetic fields. Journal of Geophysical Research 93: doi: 10.1029/88JA03514. issn: 0148-0227. |
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The induced electric field produced by magnetohydrodynamic processes can accelerate test particles very efficiently under certain circumstances. Numerical experiments indicate that particles are accelerated to very high energy by the magnetohydrodynamic fields accompanying reconnection that is triggered by finite amplitude turbulent fluctuations. This turbulent neutral point mechanism includes both coherent and stochastic components of acceleration. Turbulence appears to influence the acceleration in two ways: It enhances the reconnection electric field while producing a stochastic electric field that gives rise to momentum diffusion; it also produces magnetic ''bubbles'' and other irregularities that can temporarily trap test particles in the strong reconnection electric field for times comparable to the magnetofluid characteristic time. We propose a scaling of the acceleration process to parameter regimes of interest which indicates that this type of acceleration may be an important factor in space physics and astrophysics. ¿ American Geophysical Union 1988 |
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Abstract |
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Keywords
Space Plasma Physics, Charged particle motion and acceleration, Space Plasma Physics, Magnetic reconnection, Space Plasma Physics, Numerical simulation studies, Space Plasma Physics, Turbulence |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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