Marginal distributions (i.e. the probabilities integrated over the β and T_C axes, respectively) of the points in Fig. 4. The upper frames show the probability density distributions of the T_C and β parameters and the lower frames show a zoomed version of the upper frames. The histograms have been normalised to represent probability distributions (area normalised to one). The vertical dashed lines indicate the median of the distribution and the points where the tails of the distribution (one-sided) contain 5% or 1% of the data.