Gas infall into atomic cooling haloes: on the formation of protogalactic disks and supermassive black holes at z > 10

Understand

We have performed cosmo-hydro simulations using the RAMSES code to study atomic cooling (ACHs) haloes at z=10 with masses 5E7Msun<~M<~2E9Msun.

• We assume primordial gas and H2-cooling and prior star-formation have been suppressed.
• We analysed 19 haloes (gas and DM) at a resolution of ~10 (proper) pc, selected from a total volume of ~2E3 (comoving) Mpc3.
• This is the largest statistical hydro-sim.