Imaginary part of the Love number Imk₂ as a function of the excitation frequency for an Earth-like planet (without ocean). Full lines: dissipation of a multi-layer body for three different α parameters (but α is the same for the different layers of these 3 cases). Dotted black line: dissipation of a homogeneous body for which we assumed the averaged value of the multi-layer profiles for shear modulus and viscosity (see Fig. 5). We also assumed a parameter α of 0.25 and assumed that the Maxwell Time is equal to the Andrade Time (ζ = 1). Dashed lines: best-fit dissipation of a homogeneous body for the three different α (the fitted values of shear modulus and viscosity are plotted in Fig. 5 and all fit parameters, including the ζ parameter, are listed in Table 2).