Q′ as a function of eccentricity calculated with depth-dependent viscosity as described in Sect. 2.3 for a planet with the size and density of Corot 7 b and four different asthenosphere thicknesses. The contribution by a convective heat transport is not included in the calculation of Q′. Two different orbital periods a)P = 2 d and b) P = 6 d were considered. If not otherwise stated, b = 5 mm and B = 40. The model parameters are listed in Tables 1 and 3–5.