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Plasmoids in Solar Flares and Their Radio and X-ray Signatures

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Multi-scale Dynamical Processes in Space and Astrophysical Plasmas

Part of the book series: Astrophysics and Space Science Proceedings ((ASSSP,volume 33))

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Abstract

This review summarizes our recent results connected with the theoretical and observational aspects of plasmoids in solar flares. We show that the plasmoids play a very important role in the primary flare process – in the magnetic field reconnection. It is shown how the plasmoids are formed, how they move and interact, and how the flare current sheet is fragmented due to these processes. Furthermore, we present a successive merging of the plasmoids, which not only very efficiently accelerate particles, but also it can produce large plasmoids which are sometimes observed in the X-ray emission. Considering the plasmoids the radio drifting pulsating structures (DPSs), narrowband dm-spikes and the above-the-loop-top hard X-ray sources are interpreted. Some interesting radio spectra, relevant to this topic, are added.

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Acknowledgements

This research was supported by the grants P209/12/0103, P209/10/1680 (GA CR), and the research project AV0Z10030501 of the Astronomical Institute AS.

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Authors and Affiliations

  1. Astronomical Institute of the Academy of Sciences of the Czech Republic, CZ–25165, Ondřejov, Czech Republic

    Marian Karlický & Miroslav Bárta

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  1. Marian Karlický
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  2. Miroslav Bárta
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Correspondence to Marian Karlický .

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Editors and Affiliations

  1. , Inst. of Astro- and Particle Physics, University of Innsbruck, Technikerstr. 25, Innsbruck, 6020, Austria

    Manfred P. Leubner

  2. , Inst. of Astro- and Particle Physics, University of Innsbruck, Technikerstr. 25, Innsbruck, 6020, Austria

    Zoltán Vörös

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Karlický, M., Bárta, M. (2012). Plasmoids in Solar Flares and Their Radio and X-ray Signatures. In: Leubner, M., Vörös, Z. (eds) Multi-scale Dynamical Processes in Space and Astrophysical Plasmas. Astrophysics and Space Science Proceedings, vol 33. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30442-2_6

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  • DOI: https://doi.org/10.1007/978-3-642-30442-2_6

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  • Print ISBN: 978-3-642-30441-5

  • Online ISBN: 978-3-642-30442-2

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