Three-Dimensional Analysis of a Polar Crown Filament Eruption Driven by Magnetic Breakout on 20 April 2023
Rasdewita Kesumaningrum(1,2), Johan Muhamad(2), Tiar Dani(2,3), Muhamad Zamzam Nurzaman(2,4), Santi Sulistiani(2), Nanang Widodo(2), Farahhati Mumtahana(2), Dhani Herdiwijaya(1,5)

(1)Astronomy Study Program, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung Indonesia.
(2)Research Center for Space, National Research and Innovation Agency (BRIN), Bandung, Indonesia.
(3)Department of Computer Science and Electronics, Universitas Gadjah Mada (UGM), Sleman, Indonesia.
(4) Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku,Kyoto, Japan.
(5)Center for Space Science, Technology, and Innovation, Bandung Institute of Technology, Bandung, Indonesia.

Abstract

On 20 April 2023, a prominence eruption occurred near the Sun^s northern polar region. Prior to the eruption, the structure appeared as a Polar Crown Filament (PCF) that remained visible for several days. The event was simultaneously observed from different viewing angles by Solar Orbiter and Solar Dynamics Observatory (SDO), enabling a stereoscopic investigation of the filament. Using these multi-viewpoint observations, we reconstructed the three-dimensional morphology of the PCF and examined the evolution of the eruption. The results suggest that a sequence of magnetic reconnection events facilitated the eruption and subsequent escape of the magnetic flux rope (MFR) into interplanetary space. The footpoint locations associated with the reconnecting field lines and the MFR were estimated through a triangulation technique based on localized brightenings observed during the eruption. Furthermore, analysis of the three-dimensional geometric evolution of the PCF indicates that the eruption was driven by a magnetic breakout process.

Keywords: polar crown filament, prominence, solar eruption, magnetic break out

Topic: Earth Physics and Space Science