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Particle acceleration at reconnecting separator current layers

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1510.04215v1 (2.469Mb)
Date
2016
Author
Threlfall, J.
E. H. Stevenson, J.
E. Parnell, C.
Neukirch, T.
Keywords
Plasmas
Sun: corona
Magnetic fields
Sun: activity
Acceleration of particles
QB Astronomy
QC Physics
T-NDAS
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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.
Citation
Threlfall , J , E. H. Stevenson , J , E. Parnell , C & Neukirch , T 2016 , ' Particle acceleration at reconnecting separator current layers ' , Astronomy & Astrophysics , vol. 585 , A95 . https://doi.org/10.1051/0004-6361/201527381
Publication
Astronomy & Astrophysics
Status
Peer reviewed
DOI
https://doi.org/10.1051/0004-6361/201527381
ISSN
0004-6361
Type
Journal article
Rights
© 2015, Publisher / the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.aanda.org / https://dx.doi.org/10.1051/0004-6361/201527381
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8001

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