Left: initial radial profile of the midplane temperature (solid) together with the contributions of stellar irradiation (dashed) and viscous heating (dash-dotted). The temperature reaches a minimum value of 10 K in the outer disc. Right: initial ionisation profiles in the midplane. The orange (dash-dotted) curve indicates the contribution of SLRs and characterises the ionisation environment in the low scenario. The green (solid) curve shows the total ionisation taking into account an additional contribution from CRs (light green curve) and characterises the ionisation environment in the high scenario.