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2014 | 125 | 1 | 158-164
Article title

Impulsively Generated Linear and Non-Linear Alfvén Waves in the Coronal Funnels

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EN
Abstracts
EN
We present simulation results of the impulsively generated linear and non-linear Alfvén waves in the weakly curved coronal magnetic flux-tubes (coronal funnels) and discuss their implications for the coronal heating and solar wind acceleration. We solve numerically the time-dependent magnetohydrodynamic equations to find the temporal signatures of the small and large-amplitude Alfvén waves in the model atmosphere of open and expanding magnetic field configuration with a realistic temperature distribution. We compute the maximum transversal velocity of both linear and non-linear Alfvén waves at different heights of the model atmosphere, and study their response in the solar corona during the time of their propagation. We infer that the pulse-driven non-linear Alfvén waves may carry sufficient wave energy fluxes to heat the coronal funnels and also to power the solar wind that originates in these funnels. Our study of linear Alfvén waves shows that they can contribute only to the plasma dynamics and heating of the funnel-like magnetic flux-tubes associated with the polar coronal holes.
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EN
Publisher

Year
Volume
125
Issue
1
Pages
158-164
Physical description
Dates
published
2014-01
received
2013-07-02
(unknown)
2013-12-04
Contributors
  • Group of Astrophysics, UMCS, E. Radziszewskiego 10, 20-031 Lublin, Poland
author
  • Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital-263 129, India
  • Department of Physics, Indian Institute of Technology (IIT)-BHU, Varanasi-221005, India
author
  • Group of Astrophysics, UMCS, E. Radziszewskiego 10, 20-031 Lublin, Poland
author
  • Department of Physics, University of Texas at Arlington, Arlington, TX 76019, USA
  • Kiepenheuer-Institut für Sonnenphysik, Schöneckstr. 6, 79104 Freiburg, Germany
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n129kz
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