Filled contour plot of the marginal likelihood values for the damping models M_TC and M_TM given by Eqs. (1) and (2), respectively (top panel), and the corresponding Bayes factors (bottom panel) over the synthetic data space 𝒟 = (P, τ_D). Equations (3) and (5) were computed over a grid with N_P = 121 and N_τD = 181 points over the ranges P ∈ [10, 40] min and τ_D ∈ [1, 50] min. Over-plotted in circles are the observations corresponding to standing slow waves in coronal loops observed in Doppler shift by SUMER at 6.3 MK. They are coloured according to the comparison between the marginal likelihood values (top panel) and the levels of evidence for each model (bottom panel) as indicated in the corresponding legends.