Göttingen 2025 – scientific programme
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EP: Fachverband Extraterrestrische Physik
EP 10: Poster Session
EP 10.8: Poster
Thursday, April 3, 2025, 11:00–12:30, ZHG Foyer 1. OG
New Insights into Stellar Activity through Simultaneous High-Resolution Spectroscopy and Photometry — •Jakob Adamczewski1,2 and Eike Günther2 — 1Göttingen University, Göttingen, Germany — 2Thüringer Landessternwarte, Tautenburg, Germany
To address unresolved questions about activity processes, one of the most active systems, UY Pic A, in the PLATO southern field was observed using simultaneous TESS photometry and ground-based high-resolution spectroscopy with the PLATOSpec spectrograph. Our study aims to determine the sizes of coronal loops, establish the relationship between radial velocity variations and starspot dynamics, and investigate the effects of magnetic coupling between two active stars and potentially their planets.
Keywords: Stellar activity; Star Spots; Coronal loops