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Self-inhibiting thermal conduction in a high-β, whistler-unstable plasma

Abstract:

A heat flux in a high-β plasma with low collisionality triggers the whistler instability. Quasilinear theory predicts saturation of the instability in a marginal state characterized by a heat flux that is fully controlled by electron scattering off magnetic perturbations. This marginal heat flux does not depend on the temperature gradient and scales as 1/β. We confirm this theoretical prediction by performing numerical particle-in-cell simulations of the instability. We further calculate the ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1017/S0022377818000399

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
Oxford college:
Merton College
Role:
Author
ORCID:
0000-0003-4421-1128
Publisher:
Cambridge University Press Publisher's website
Journal:
Journal of Plasma Physics Journal website
Volume:
84
Issue:
3
Pages:
Article: 905840305
Publication date:
2018-06-01
Acceptance date:
2018-04-18
DOI:
EISSN:
1469-7807
ISSN:
0022-3778
Pubs id:
pubs:845018
URN:
uri:2bfd2612-2dca-44b3-97ae-f406d57f8d71
UUID:
uuid:2bfd2612-2dca-44b3-97ae-f406d57f8d71
Local pid:
pubs:845018

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