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Collisionless current sheet equilibria

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Neukirch_2018_Plasma_Phys._Control._Fusion_60_014008_CC.pdf (761.5Kb)
Date
01/2018
Author
Neukirch, Thomas
Wilson, Fiona
Allanson, Oliver Douglas
Keywords
Collisionless plasmas
Current sheets
Plasma equilibrium
Force-free magnetic fields
QA Mathematics
QC Physics
T-NDAS
Metadata
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Abstract
Current sheets are important for the structure and dynamics of many plasma systems. In space and astrophysical plasmas they play a crucial role in activity processes, for example by facilitating the release of magnetic energy via processes such as magnetic reconnection. In this contribution we will focus on collisionless plasma systems. A sensible first step in any investigation of physical processes involving current sheets is to find appropriate equilibrium solutions. The theory of collisionless plasma equilibria is well established, but over the past few years there has been a renewed interest in finding equilibrium distribution functions for collisionless current sheets with particular properties, for example for cases where the current density is parallel to the magnetic field (force-free current sheets). This interest is due to a combination of scientific curiosity and potential applications to space and astrophysical plasmas. In this paper we will give an overview of some of the recent developments, discuss their potential applications and address a number of open questions.
Citation
Neukirch , T , Wilson , F & Allanson , O D 2018 , ' Collisionless current sheet equilibria ' Plasma Physics and Controlled Fusion , vol 60 , no. 1 , 014008 . DOI: 10.1088/1361-6587/aa8485
Publication
Plasma Physics and Controlled Fusion
Status
Peer reviewed
DOI
http://dx.doi.org/10.1088/1361-6587/aa8485
ISSN
0741-3335
Type
Journal article
Rights
© 2017 IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Description
The authors acknowledge financial support by the UK Science and Technology Facilities Council Consolidated Grants ST/K000950/1 and and ST/N000609/1, as well as Doctoral Training Grant ST/K502327/1. OA also acknowledges support by the UK Natural Environment Research Council Grant NE/P017274/1.
Collections
  • Applied Mathematics Research
  • Mathematics & Statistics Research
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/11890

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