Dynamical flattening of halo density cusps by Q-ball dark matter

Cold, collisionless dark matter successfully explains a wide range of observations, including the formation of large-scale structure.

Cold, collisionless dark matter successfully explains a wide range of observations, including the formation of large-scale structure. Nevertheless, tensions remain on small, galactic scales, most notably the cusp-core, or inner-mass-deficit, problem and the diversity of inner…