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Acceleration of Solar Wind Particles Passing through the 3D Heliospheric Current Sheet

Published online by Cambridge University Press:  24 July 2018

Valentina V. Zharkova
Valentina V. Zharkova*
Affiliation:
Department of Mathematics, Physics and Electrical Engineering, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UK email: valentina.zharkova@northumbria.ac.uk
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Abstract

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Additional acceleration of protons and electrons passing through a 3D reconnecting current sheet (RCS) of the solar corona and heliosphere is investigated with PIC approach. The simulation confirms spatial separation of electrons and protons and generation of a polarisation electric field induced by separated particles. In the heliospheric current sheet with a weak magnetic field there are two populations of particles: transit and bounced. The transit particles (both protons and electrons) are accelerated to high energies while the bounced electrons fail to reach the midplane. Instead they form an electron cloud of horseshoe or medallion types at some distance D from its midplane, which is larger for bigger guiding field magnitudes. These energetic electrons and protons appearing near the HCS boundaries can be a great danger for the satellites crossing the sector boundaries.

Keywords

Sun: flaresplasmasacceleration of particlesmagnetic field
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S335: Space Weather of the Heliosphere: Processes and Forecasts , July 2017 , pp. 54 - 57
Copyright
Copyright © International Astronomical Union 2018 

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