Cluster profiles of the cooling time (tcool) to free fall time (tff) ratio at different snapshots of the simulation. The cluster profiles are sampled each 25 Myr across the full time evolution of the simulation. tcool is calculated for each cell in the simulation, using its instantaneous density, temperature and cooling function as computed by RAMSES. tff is calculated using all mass (DM, gas, stars and the SMBH) contained within a given radius. Profiles are colour-coded by condensation rate (left) or dense gas mass (right), based on the condensation rate and dense gas mass onto clumps at that radius. Snapshots during cooling dominated (top panel) and heating dominated intervals (bottom panel) are plotted separately for clarity.
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