Göttingen 2025 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 6: Sun and Heliosphere III
EP 6.7: Vortrag
Dienstag, 1. April 2025, 18:00–18:15, ZHG101
Ubiquitous magnetic reconnection in filament eruptions revealed by Solar Orbiter at perihelion — •Song Tan1,2, Alexander Warmuth1, and Frédéric Schuller1 — 1Leibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16 14482 Potsdam, Germany — 2Institut für Physik und Astronomie, Universität Potsdam, Potsdam, Germany
Using unprecedented high-resolution observations (105 km/pixel) of Solar Orbiter Extreme Ultraviolet Imager, we reveal ubiquitous magnetic reconnection events in a failed filament eruption. Magnetic reconnection occurs between the filament and the surrounding magnetic field structures, with frequency and type far exceeding previous observations. These ubiquitous reconnections significantly affect the stability and eruption dynamics of the filament, leading to simultaneous coronal jets and failed eruptions. We propose a "magnetic erosion effect" concept, emphasizing the importance of frequent, fine-scale magnetic reconnection during the filament evolution.
Keywords: magnetic reconnection; solar filament; solar flare