Astronomy seminar: Dwarfs galaxies as a key to better understanding dark matter and star formation

Dwarf galaxies have long been seen as a challenge to the Lambda Cold Dark Matter paradigm. Key issues include (1) the missing satellite problem; (2) the too-big-to-fail problem; (3) the cusp-core problem; and (4) the planes of satellites. In this talk, I will discuss how combining observations of nearby dwarf galaxies in differing environments with new high-resolution simulations are allowing us to better understand each of these issues. With these tools, we can begin to place tighter constraints on star formation and dark matter in the smallest galaxies.