Stellar Physics

Stars are the birthplace of most chemical elements, and their motion in space reveals gravitational forces on scales ranging from solar systems to entire galaxies. From their formation in gas and dust clouds to their mass-dependent fates, stars play a crucial role in recycling material back into space. This recycling process influences the formation of new stars and planetary systems. Theoretical models and stellar observations work hand in hand to uncover the processes, physical conditions, and dynamics within stars.

Our research group focuses on several key areas in stellar physics. One major area is the development of detailed stellar atmosphere models, which help us interpret the spectra of cool stars and refine our understanding of stellar evolution. Another focus is the study of stellar magnetic fields. We use advanced techniques like Zeeman Doppler Imaging to map magnetic topologies across various star types, enhancing our understanding of how magnetic forces influence the formation of stars and planetary systems. Additionally, our work on stellar winds, particularly in cool, luminous giants, combines both 1D and 3D simulations with observational data to explore the mechanisms driving mass loss in these stars, contributing to the enrichment of the interstellar medium. Our research on stellar composition, particularly in metal-poor stars, provides insights into the early universe and the processes that shaped the elemental abundances we observe today.

Research projects

Models of stellar atmospheres

Stellar magnetic fields and surface structure

Stellar winds

Stellar composition