Volumetric tidal heating profile for T1-b for different surface temperatures (and thus viscosity profiles): (a) 300 K, (b) 600 K, (c) 670 K, (d) 800 K. The different colors represent the different structures listed in Table 1. The areas delimited by the full (dashed) lines correspond to the minimum (maximum) eccentricities given in Table 2. The extent of the areas represents the sensitivity of the profile to α, with the lower (left) limit corresponding to α=0.30 and the upper (right) limit corresponding to α=0.20. These profiles were obtained with Eq. (2). The tidal heating profile of the Earth is shown in a dashed black line as in Bolmont et al. (2020a). Additionally, we represent areas delimited by faint dotted lines. These profiles are compatible with JWST observational constraints on the nightside temperature of the T1-b (291 K at 2σ, 322 K at 3σ from Gillon et al. 2025), which are here hypothesized to be equal to a tidal temperature. The lower left limit thus corresponds to 291 K, and the upper right to 322 K.