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Acceleration and radiation from a complex active region

  • 2 Flare Theory and Statistics
  • Conference paper
  • First Online:
Coronal Magnetic Energy Releases

Part of the book series: Lecture Notes in Physics ((LNP,volume 444))

  • 146 Accesses

Abstract

Active regions are treated in this review as a “paradigm” of a complex dynamical system. Active regions are formed by magnetic fibers escaping from the turbulent convection zone. Random movements of the feet of the fibers in the photosphere and emergence of new magnetic flux from the convection zone are responsible for the formation of neutral sheets and magnetic discontinuities inside the active region, which are the sites for magnetic dissipation. A simple model, based on the scenario of self organised criticality, reproduces many of the known flare characteristics. The same model is used to provide a large number of nanoflares, which can heat the corona. We also show that this complex, inhomogeneous active region, is an efficient accelerator and reproduce the observed dm spikes and type III bursts.

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Authors and Affiliations

  1. Department of Physics, University of Thessaloniki, 54006, Thessaloniki, Greece

    Loukas Vlahos

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  1. Loukas Vlahos
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Arnold O. Benz Albrecht Krüger

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© 1995 Springer-Verlag

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Vlahos, L. (1995). Acceleration and radiation from a complex active region. In: Benz, A.O., Krüger, A. (eds) Coronal Magnetic Energy Releases. Lecture Notes in Physics, vol 444. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-59109-5_46

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  • DOI: https://doi.org/10.1007/3-540-59109-5_46

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-59109-2

  • Online ISBN: 978-3-540-49189-7

  • eBook Packages: Springer Book Archive

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