Abstract: Dark matter cannot be observed directly at any wavelength of light, but it can be detected through its gravitational effects on luminous material. At

This thesis addresses the intersection of dark matter and galaxy formation physics by modeling the faintest galaxies in the Universe in a cosmological context.

An important, open research topic today is to understand the relevance that dark matter halo substructure may have for dark matter searches. In the standard cos

The acceleration of the universe, which is often attributed to "dark energy, " has posed one of the main challenges to fundamental physics. Galaxy clusters prov