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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 35, issue 4
Ann. Geophys., 35, 805–816, 2017
https://doi.org/10.5194/angeo-35-805-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 35, 805–816, 2017
https://doi.org/10.5194/angeo-35-805-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Review paper 14 Jul 2017

Review paper | 14 Jul 2017

Our dynamic sun: 2017 Hannes Alfvén Medal lecture at the EGU

Eric Priest
Cited articles  
Archontis, V. and Hansteen, V.: Clusters of Small Eruptive Flares Produced by Magnetic Reconnection in the Sun, Astrophys. J. Lett., 788, L2, https://doi.org/10.1088/2041-8205/788/1/L2, 2014.
Archontis, V., Hood, A. W., and Tsinganos, K.: Recurrent Explosive Eruptions and the “Sigmoid-to-arcade” Transformation in the Sun Driven by Dynamical Magnetic Flux Emergence, Astrophys. J. Lett., 786, L21, https://doi.org/10.1088/2041-8205/786/2/L21, 2014.
Aulanier, G., Pariat, E., and Démoulin, P.: Current-sheet formation in quasi-separatrix layers and hyperbolic flux tubes, Astron. Astrophys., 444, 961–976, https://doi.org/10.1051/0004-6361:20053600, 2005.
Berger, M. A.: Rigorous new limits on magnetic helicity dissipation in the solar corona, Geophys. Astrophys. Fluid Dynam., 30, 79–104, https://doi.org/10.1080/03091928408210078, 1984.
Birkeland, K.: The Norwegian Aurora Polaris Expedition, 1902–1903, in: vol. I, Sect. 1, H. Aschehoug, Oslo, 1908.
Publications Copernicus
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Short summary
A review is given of major progress towards addressing unsolved fundamental puzzles about the Sun. The solar magnetic field is generated by dynamo action in the solar interior. Several mechanisms may heat the corona to 106 K and drive the solar wind. Occasionally, giant flux ropes (prominences) erupt and produce huge CMEs and solar flares. A new theory is presented for the origin of the twist observed in erupting prominences and the nature of reconnection in the rise phase of a flare or CME.
A review is given of major progress towards addressing unsolved fundamental puzzles about the...
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