The surface brightness fluctuations (SBF) method provides a powerful and independent means of calibrating the cosmic distance ladder, making it an essential tool in addressing the persistent Hubble tension. This talk will review the fundamentals of the SBF technique and highlight recent advances that are reshaping our understanding of cosmic expansion. I will then:
i) present recent results from the JWST/TRGB–SBF project and discuss their direct implications for the H₀ discrepancy;
ii) share early outcomes from SBF analyses using Euclid and LSST-precursor observations; and
iii) explore the transformative prospects for SBF studies with upcoming facilities such as the Roman Space Telescope and the Extremely Large Telescope (ELT).
30/10/2025
Speakers :Michele Cantiello, Rebecca Habas
Observatory of Abruzzo in Teramo
Thursday, October 30th at 12:00 pm in Aula Gratton.
To follow remotely, you can use this link: https://meet.google.com/dos-tbhe-sgs