Heat maps of ΔT and Δβ measured on a simulated edge-on galaxy at various angular distances θ from the centre, as a function of the kernel type used. Each panel represents a scenario from Table 1. Dashed lines indicate the scale height of the dust profile z_d. This figure highlights the very small scatter in both ΔT and Δβ when using the kernels with effective PSFs (column E on each plot, until the S/N becomes to low as in panel b.2).