Ultra-light Dark Matter Is Incompatible with the Milky Way’s Dwarf Satellites
Ultra-light Dark Matter Is Incompatible with the Milky Way’s Dwarf Satellites
Abstract The density profiles of dwarf galaxies are a highly varied set. If the dark matter is an ultra-light particle such as axions, then simulations predict a distinctive and unique profile. If the axion mass is large enough to fit the ultra-faint dwarf (UFD) satellites ( <?CDATA $m\gtrapprox {10}^{-21}$?> eV), …