Title: Dark matter substructures in dwarf spheroidal galaxies Speaker: Prof Jorge Penarrubia (University of Edinburgh) Date: 2026-03-25 • 03:00 PM - 04:00 PM Location: Module 15, Sala 201

Abstract: In the current cosmological paradigm, galaxies are teeming with dark matter substructures with masses as low as that of Earth (M~10^{-6} Msol). These objects do not form stars, and are only detectable through the perturbations they induce on the motion of visible objects. Being the most dark matter (DM)–dominated galaxies in the Universe, dwarf spheroidal galaxies (dSPhs) provide excellent targets for testing this prediction.

Read more: https://weiguangcui.github.io/DECAF/blog#2026-03-25