München 2019 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 1: Sun and Heliosphere I

EP 1.1: Hauptvortrag

Montag, 18. März 2019, 16:30–17:00, HS 19

The Sun in high resolution — •Lucia Kleint — Leibniz-Institut für Sonnenphysik (KIS), Freiburg, Germany

GREGOR is Europe's largest solar telescope and allows us to study the solar atmosphere at scales as small as 50 km. Some of the important open questions in solar physics only become accessible by studying the Sun at such scales: What is the fine structure of sunspots? How does the quiet Sun magnetic field evolve? How is energy dissipated during solar flares? Because dynamic events on the Sun can take place within seconds and because polarimetric observations are essential to derive the magnetic field, even solar observations often reach a photon-starved regime, which can only be tackled with larger and larger telescopes. I will review recent advances in high-resolution observations and take flare physics as an example to address open questions in solar physics.