Dark Bondi Accretion Aided by Baryons and the Origin of JWST Little Red Dots

The gravothermal core collapse of self-interacting dark matter halos provides a mechanism for seeding supermassive black holes in the early Universe. We show that the collapse of a small fraction of the halo mass can trigger general-relativistic instability and produce black hole seeds in halos with masses 10 9,M at high redshifts. We investigate whether this process can account for the origin of JWST little red dots at z about4-11, which host black holes with masses about10 7,M. We find that such masses may be reached within about500,Myr through rapid core collapse followed by efficient accretion, even for initial seed masses less than 10 cubed,M. This scenario allows a substantial fraction of the black hole mass to originate from dark matter accretion, potentially offering a viable pathway to forming massive black holes at high redshifts.