Interaction of an Erupting Filament with the Ambient Magnetoplasma and Escape of Electron Beams |
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| Authors: | Vr?nak Bojan Warmuth Alexander Mari?i? Darije Otruba Wolfgang Ru?djak Vladimir |
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| Institution: | (1) Faculty of Geodesy, Hvar Observatory, Ka i eva 26, HR-10000 Zagreb, Croatia;(2) Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany;(3) Zagreb Astronomical Observatory, Opaticka 22, HR-10000 Zagreb, Croatia;(4) Kanzelhöhe Solar Observatory, 9521 Treffen, Austria |
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| Abstract: | A huge filament eruption of 12 September 2000 associated with a two-ribbon spotless flare is described. During the acceleration phase the shape of the filament changed, and signatures of topological restructuring of large-scale coronal magnetic fields were inferred by tracking changes of nearby coronal holes. At the same time electron beams associated with the flare impulsive phase escaped into interplanetary space. Based on the time–spatial relationships a hypothesis is put forward, according to which the reconnection between the arcade magnetic field and the ambient field provides a temporary link between the open field lines and the flare energy release site, enabling the escape of electron beams into interplanetary space. |
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