Particle acceleration at reconnecting separator current layers

J. Threlfall, J. E. H. Stevenson, C. E. Parnell, T. Neukirch

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8 Citations (Scopus)
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Abstract

The aim of this work is to investigate and characterise particle behaviour in a 3D MHD model of a reconnecting magnetic separator. We use a relativistic guiding-centre test-particle code to investigate electron and proton acceleration in snapshots from 3D MHD separator reconnection experiments, and compare the results with findings from an analytical separator reconnection model studied in a previous investigation. The behaviour (and acceleration) of large distributions of particles are examined in detail for both analytical and numerical separator reconnection models. Differences in acceleration sites are recovered and discussed, together with the dependence of final particle energy ranges upon the dimensions of the models and the stage of the (time-dependent) MHD reconnection event. We discuss the implications of these results for observed magnetic separators in the solar corona.
Original languageEnglish
Article numberA95
Number of pages12
JournalAstronomy & Astrophysics
Volume585
Early online date23 Dec 2015
DOIs
Publication statusPublished - 2016

Keywords

  • Plasmas
  • Sun: corona
  • Magnetic fields
  • Sun: activity
  • Acceleration of particles

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