Mass dependence of the radius of maximal entropy. The dots represent the individual haloes of the sample. The line shows a Linear fit in log-log space obtained from the haloes in the range where there is a clear entropy peak visible. The obtained parameters are t = 2.6193 ± 0.1157 and m = −0.1513 ± 0.0008 using a log(r_max(K)) = m × log(M/M_⊙)+t model. The tight spacing of the dots along the x-axis reflects the mass spread of the Fig. 3, which we have optimised to be as small as possible (see Sec:Methods).