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NAM2012 - All Presentation Details

Record 438 of 756

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3D particle acceleration effects in the PIC approach and their diagnostics from the HCS observations

Author: Prof. V.Zharkova

University of Bradford

Co-Authors: Zharkova V.V. (1) and Khabarova O. (2) 1 - Department of Mathematics, University of Bradford, UK 2 - IZMIRAN, Troitsk, UK

Session: MST1: Magnetic Reconnection in Space and Astrophysical Plasmas

Presentation type: Talk      11:03  Thursday 29th 10:00-11:15 


In this paper we discuss particle acceleration in 3D heliospheric current sheet derived from PIC simulations. The dynamics of electrons and protons at acceleration in a reconnecting current sheet is shown to be affected by polarization (Hall) electric field induced by electrons and protons at their separation towards the current sheet midplane. The simulated dynamics of accelerated particles at lower densities is probed by high-resolution measurements of the sector boundary, or the HCS crossings (SBSs) in the solar wind at 1 AU. A likehood of the observed plasma parameters, simulated profiles of velocity and density of accelerated electrons and ions across the HCS as well as the radio frequencies of plasma turbulence are discussed in association with the effects of polarization and turbulent electric fields induced by accelerated particles. Implications of findings for the interpretation of the solar wind observations are also discussed.

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