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Nonlinear oscillations of coalescing magnetic flux ropes
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Kolotkov, Dmitrii, Nakariakov, V. M. (Valery M.) and Rowlands, G. (George) (2016) Nonlinear oscillations of coalescing magnetic flux ropes. Physical Review E . doi:10.1103/PhysRevE.93.053205 ISSN 1539-3755.
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WRAP_9877890-px-060516-kolotkov_pre_2016_r2.pdf - Accepted Version - Requires a PDF viewer. Download (771Kb) | Preview |
Official URL: http://journals.aps.org/pre/
Abstract
An analytical model of highly nonlinear oscillations occurring during a coalescence of two magnetic flux ropes, based upon two-fluid hydrodynamics, is developed. The model accounts for the effect of electric charge separation, and describes perpendicular oscillations of the current sheet formed by the coalescence. The oscillation period is determined by the current sheet thickness, the plasma parameter β, and the oscillation amplitude. The oscillation periods are typically greater or about the ion plasma oscillation period. In the nonlinear regime, the oscillations of the ion and electron concentrations have a shape of a narrow symmetric spikes.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Magnetism -- Mathematical models, Plasma oscillations -- Research, Ions , Electrons | ||||
Journal or Publication Title: | Physical Review E | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1539-3755 | ||||
Official Date: | 5 May 2016 | ||||
Dates: |
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DOI: | 10.1103/PhysRevE.93.053205 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 6 May 2016 | ||||
Date of first compliant Open Access: | 9 May 2016 | ||||
Funder: | European Research Council (ERC), Korea (South). Munʼgyobu [Ministry of Education] | ||||
Grant number: | No. 321141 SeismoSun, STFC consolidated grant ST/L000733/1 (ERC), BK21 plus program |
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