Göttingen 2025 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 3: Near-Earth Space I

EP 3.4: Hauptvortrag

Dienstag, 1. April 2025, 14:45–15:15, ZHG005

Beauty and hazards created by the terrestrial magnetosphere — •Elena Kronberg — LMU, Munich, Germany

Space weather activity during the current solar cycle maximum draws our attention to striking phenomena, such as auroras seen at unusually low latitudes. It also raises concerns about whether modern technology is sufficiently protected from space hazards. In this talk I will discuss magnetospheric mechanisms that generate auroral features such as spirals. These mechanisms also make powerful particle accelerators. Energetic particles at 100s of keV are responsible for lost observation time in astrophysical X-ray missions such as XMM. They may damage observations from the prospective magnetospheric mission SMILE. Machine learning based models of the charged particle population are derived to mitigate such costly losses. Magnetospheric dynamics also leads to changes in the atmosphere, which in the long term may affect planetary habitability.

Keywords: magnetospheric dynamics; aurora; energetic charged particles; cold ions; Sun-Earth interaction