Speaker
Description
In this talk, I highlight the strong constraining power of small scale astrophysical observations. The small scales not only give us a window into the still not precisely measured small scale behaviour of dark matter, but it can also tell us about the particle physics properties of this component. We focus on the ultra-light dark matter models, specifically the fuzzy dark matter (FDM) model, since these models present a rich and distinct phenomenology on small scales. I will show how we can use the different predictions of this model and different astrophysical systems to put the strongest bounds to date on the mass of this ultra-light axion. We also show how these measurements can even give us hints on the spin, self-interaction, and fraction of these bosonic particles.
