Crater 2: An Extremely Cold Dark Matter Halo
National Science Foundation [AST-1313045, AST-1412999]; NSF [AST1313006]; Clay Fellowship; United Kingdom Science and Technology Council (STFC) for the award of Ernest Rutherford fellowship [ST/N004493/1]; European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC [308024]