Milky Way satellite velocities reveal Dark Matter and galaxy properties

Dark Matter (DM) properties at small (~kpc) scales remain uncertain. Recent theoretical and observational advances have provided the tools to narrow them down. In this talk, I will discuss how the correlation between internal velocities and sizes of dwarf galaxies is a sharp probe of small-scale DM properties.
I will introduce the relevant tools that allow to go from DM properties to dwarf galaxy properties, showing that —
despite baryonic uncertainties— Milky Way satellite galaxy data can be used to probe how DM clusters at small scales with unprecedented precision. In passing, this also provides novel information on small-scale galaxy formation. At the end of the talk, I will also discuss preliminary results when including luminosity information.

Zoom: https://dipc-org.zoom.us/j/99936188721
YouTube: https://youtube.com/live/uxpI36XjVag