The nature of dark matter is one of the outstanding questions of astrophysics. The internal motions of member stars reveal that the lowest luminosity galaxies in the Local Group are the most dark-matter dominated. New large datasets allow one to go further, and determine systematic properties of their dark matter haloes. We summarise recent results, emphasising the critical role of the dwarf spheroidal galaxies in understanding both dark matter and baryonic processes that shape galaxy evolution.
Dark Galaxies and Lost Baryons
- Pub Date:
- May 2008
- dark matter;
- Local Group;
- galaxies: kinematics and dynamics;
- To appear in proceedings of IAU Symposium 244, `Dark Galaxies &