Colloquium by Michele Cantiello
Tuesday, December 16, 2025, 16:30
HS C
Students and Academic Staff
We invite you to our colloquium with guest Augusto Smerzi from INAF - Osservatorio Astronomico d'Abruzzo, Italy.
Measuring Cosmic Distances with Surface Brightness Fluctuations: Recent Results and Future Prospects
The surface brightness fluctuations (SBF) method provides a powerful and independent route to measuring extragalactic distances, playing a key role in calibrating the cosmic distance ladder. In this talk, I will give an overview of the SBF technique and highlight recent scientific results that are refining our understanding of cosmology. I will focus on the TRGB-SBF project with JWST and its direct implications for the ongoing Hubble tension, and also present initial results from SBF studies using Euclid and LSST-precursor data. Finally, I will discuss the potential of the SBF method with upcoming facilities like the Roman Space Telescope and the Extremely Large Telescope (ELT).
Organizers: K. Erath-Dulitz, H.-C. Nägerl, F. Marleau