Heidelberg 2022 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 11: Astroparticles: From the source to the detector (joint session EP/T)

EP 11.7: Vortrag

Donnerstag, 24. März 2022, 17:45–18:00, EP-H1

First science results from the X-ray telescope STIX on Solar Orbiter — •Alexander Warmuth, Frederic Schuller, and Gottfried Mann — Leibniz -Institut für Astrophysik Potsdam (AIP)

The ESA mission Solar Orbiter was successfully launched in 2020, with the main goal of improving our understanding of how the Sun creates and controls the heliosphere. The Spectrometer/Telescope for Imaging X-rays (STIX) is one of six remote-sensing instruments on board and provides imaging spectroscopy of solar flares in the energy range of 4 to 150 keV. Thus, STIX is able to measure quantitatively both the parameters of the hot flare plasma and the characteristics of the accelerated electrons. Together with the other instruments on Solar Orbiter as well as with other space-borne and ground based observational assets, STIX studies energy release and particle acceleration in solar flares. This talk will be focused on the first science results obtained during the cruise phase of Solar Orbiter (2020 and 2021). This includes observations of microflares, constraints on flare energetics, collaborative studies of gamma-ray flares together with Fermi, and the investigation of flare-associated solar energetic particle events.