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EP: Fachverband Extraterrestrische Physik

EP 5: Sun and heliosphere I

EP 5.5: Talk

Wednesday, March 22, 2023, 12:30–12:45, ZEU/0160

Joint LOFAR and STIX observations of flare-accelerated electrons in the solar corona — •Malte Bröse — Leibniz-Institut für Astrophysik Potsdam (AIP), Germany

A joint analysis approach is used to study flare signatures both in the low and higher corona. STIX, AIA and LOFAR data provide an extensive picture about different aspects of flare characteristics. Recent data by the STIX instrument complement the picture of accelerated electrons, which propagate along magnetic field lines towards the Sun. These observations are linked to the LOFAR data, which contain information about the elctrons propagating away from the Sun through the corona above the active region. Although, the active region and its thermal evolution (Differential Emission Measure (DEM) reconstruction of AIA data), flare accelerated electrons and their radio traces (LOFAR, STIX) are in principal all associated with the energy release during the flare process, they are often studied seperatly. Hence, the investigation of possible relations is part of this project. Solar magnetic fields as a binding element between low and high corona, accelerated electrons and heated flare loops are included in the analysis via a Potential Field Source Surface (PFSS) model.