Speaker
Ignacio Trujillo
Description
The large-scale structure of the Universe strongly supports the hypothesis that collisionless cold dark matter is a good description of the nature of dark matter. However, at the scale of galaxies, this simple hypothesis faces several problems that remain unresolved. In particular, the existence of very low-mass galaxies and their internal structure pose a challenge to this simple dark matter model. In this talk, I will show how the current ultra-deep sky surveys, which are revealing hundreds of such faint galaxies, can help to constrain the various dark matter models with unprecedented accuracy.
