How Lumpy Is the Milky Way’s Dark Matter Halo?
How Lumpy Is the Milky Way’s Dark Matter Halo?
Cold dark matter (CDM) simulations predict that there are hundreds of lumps with masses greater than 107 M☉ in the Milky Way halo. However, we know of only a dozen dwarf satellites close to this mass. Are these lumps simply lacking in stars, or is there a fundamental flaw in …