Mass-weighted phase space diagrams of density versus temperature at the initial collapse (left), 5 Myr after the collapse (middle), and 14.3 Myr after the collapse (right) which is the point at which we extract the clump properties from the simulation for input into direct N-body calculations. This includes all gas within 10 pc of the densest cell. The gas cools to a few hundred kelvin initially due to H₂ cooling and then reaches the CMB temperature floor due to HD and metal cooling. The dashed lines represent the CMB temperature floor and the artificial temperature floor as labelled.