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Acceleration and transport of ions in turbulent current sheets: formation of non-maxwelian energy distribution
1Space Research Institute, RAS, Profsoyusnaya Street 84/32, Moscow, Russia
2Nuclear Physics Institute, Moscow State University, Moscow, Russia
3Dipartimento di Fisica, Universita della Calabria, 87036 Arcavacatadi Rende, Italy
4Laboratoire de Physique des Plasmas, CNRS, Saint-Maur-des-Fossés, France
Abstract. The paper is devoted to particle acceleration in turbulent current sheet (CS). Our results show that the mechanism of CS particle interaction with electromagnetic turbulence can explain the formation of power law energy distributions. We study the ratio between adiabatic acceleration of particles in electric field in the presence of stationary turbulence and acceleration due to electric field in the case of dynamic turbulence. The correlation between average energy gained by particles and average particle residence time in the vicinity of the neutral sheet is discussed. It is also demonstrated that particle velocity distributions formed by particle-turbulence interaction are similar in essence to the ones observed near the far reconnection region in the Earth's magnetotail.
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Citation: Artemyev, A. V., Zelenyi, L. M., Malova, H. V., Zimbardo, G., and Delcourt, D.: Acceleration and transport of ions in turbulent current sheets: formation of non-maxwelian energy distribution, Nonlin. Processes Geophys., 16, 631-639, 2009. Bibtex EndNote Reference Manager
