Dark matter in astrophysics/cosmology
Anne M. Green
SciPost Phys. Lect. Notes 37 (2022) · published 25 January 2022
Part of the 2021-07: Dark Matter Collection in the Les Houches Summer School Lecture Notes Series.
- doi: 10.21468/SciPostPhysLectNotes.37
- Submissions/Reports
Abstract
These lecture notes aim to provide an introduction to dark matter from the perspective of astrophysics/cosmology. We start with a rapid overview of cosmology, including the evolution of the Universe, its thermal history and structure formation. Then we look at the observational evidence for dark matter, from observations of galaxies, galaxy clusters, the anisotropies in the cosmic microwave background radiation and large scale structure. To detect dark matter we need to know how it's distributed, in particular in the Milky Way, so next we overview relevant results from numerical simulations and observations. Finally, we conclude by looking at what astrophysical and cosmological observations can tell us about the nature of dark matter, focusing on two particular cases: warm and self-interacting dark matter.