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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:58 |
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Conference: Bucharest University Faculty of Physics 2023 Meeting
Section: Atomic and Molecular Physics. Astrophysics. Applications
Title:
A study of solar flares associated with a filament eruption
Authors:
Liliana DUMITRU, Octavian BLAGOI, Cristian DANESCU
Affiliation:
Astronomical Institute of the Romanian Academy
E-mail
Liliana.Dumitru@astro.ro
Keywords:
active region, solar flares, filament eruptions, coronal mass ejections, nonlinear force-free field
Abstract:
Solar flares, filament eruptions and coronal mass ejections (CMEs) are spectacular eruptive phenomena produced in the solar atmosphere. In order to understand these phenomena, it is important to analyze their evolution over time, but also to analyze the parameters involved in these phenomena.
We present a M3.7 class solar flare associated with a filament eruption observed in Active Region 13229 (AR 13229), located in the northern solar hemisphere (N29W24), on February 24, 2023. These phenomena produced a coronal mass ejection with an earth-directed component. Using a nonlinear force-free field (NLFFF) algorithm, we calculated the magnetic flux and obtained the 3D magnetic configuration from photospheric magnetic magnetograms Spaceweather HMI Active Region Patch (SHARP) from the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO). We analyzed the evolution of the magnetic flux in the interval of 120 minutes around the eruption.
Acknowledgement:
We acknowledge SDO teams for the science data.
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