SUPERMASSIVE BLACK HOLES FROM ULTRA-STRONGLY SELF-INTERACTING DARK MATTER
SUPERMASSIVE BLACK HOLES FROM ULTRA-STRONGLY SELF-INTERACTING DARK MATTER
We consider the cosmological consequences if a small fraction () of the dark matter is ultra-strongly self-interacting, with an elastic self-interaction cross section per unit mass . This possibility evades all current constraints that assume that the self-interacting component makes up the majority of the dark matter. Nevertheless, even a …