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Pressure-anisotropy-driven microturbulence and magnetic-field evolution in shearing, collisionless plasma

Abstract:

The nonlinear state of a high-beta collisionless plasma is investigated when an imposed linear shear amplifies or diminishes a uniform magnetic field, driving pressure anisotropies and hence firehose/mirror instabilities. The evolution of the resulting microscale turbulence is considered when the shear is switched off or reversed after one shear time (mimicking local behaviour of a macroscopic flow), so a new macroscale configuration is superimposed on the microscale state left behind by the ...

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

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Publisher copy:
10.1093/mnras/stw793

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
459
Issue:
3
Pages:
2701-2720
Publication date:
2016-07-01
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:ee020eab-5b7e-4793-922d-80dbc75c9c48
Source identifiers:
580970
Local pid:
pubs:580970

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