Articles | Volume 16, issue 6
Nonlin. Processes Geophys., 16, 631–639, 2009
https://doi.org/10.5194/npg-16-631-2009
Nonlin. Processes Geophys., 16, 631–639, 2009
https://doi.org/10.5194/npg-16-631-2009

  04 Nov 2009

04 Nov 2009

Acceleration and transport of ions in turbulent current sheets: formation of non-maxwelian energy distribution

A. V. Artemyev1,2, L. M. Zelenyi1, H. V. Malova1,2, G. Zimbardo3, and D. Delcourt4 A. V. Artemyev et al.
  • 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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