Self-organized braiding in solar coronal loops
Berger, M.A.; Asgari-Targhi, M.; DeLuca, E.E.
Date: 1 January 2015
Article
Journal
Journal of Plasma Physics
Publisher
Cambridge University Press (CUP)
Publisher DOI
Abstract
In this paper, we investigate the evolution of braided solar coronal loops. We assume that coronal loops consist of several internal strands which twist and braid about each other. Reconnection between the strands leads to small flares and heating of the loop to X-ray temperatures. Using a method of generating and releasing braid ...
In this paper, we investigate the evolution of braided solar coronal loops. We assume that coronal loops consist of several internal strands which twist and braid about each other. Reconnection between the strands leads to small flares and heating of the loop to X-ray temperatures. Using a method of generating and releasing braid structure similar to a forest fire model, we show that the reconnected field lines evolve to a self-organised critical state. In this state, the frequency distributions of coherent braid sequences as well as flare energies follow power law distributions. We demonstrate how the presence of net helicity in the loop alters the distribution laws.
Mathematics and Statistics
Faculty of Environment, Science and Economy
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