Tidal heating profile of the outer TRAPPIST-1 planets for different eccentricities sets. Top panel: eccentricities coming from the TTV analysis of Grimm et al. (2018), tidal heating profile computed using the median eccentricity (thick line), and the standard deviation (thin lines) of the eccentricity. Bottom panel: eccentricities coming from N-body simulations with tides presented in Turbet et al. (2018). For comparison, the heating profiles of the solid Earth (black line) and Venus (grey lines: full and dashed for the “cold” and “hot” profiles respectively) are added.