Comparison between model template spectra (black), synthetic spectra (red) additionally deformed according to model parameters resulting from the spot model fit (see text), and the observed profiles (grey) (from top to bottom and left to right: Ca ii 3933 Å with Hζ and Hϵ, Hδ, Mg ii 4481 Å and Hα). In each panel, the top black spectrum shows the comparison to a template with parameters T_eff = 11   500 K and log g = 4.0, the middle to the template T_eff = 10   500 K and log g = 4.0 and the bottom to T_eff = 9500 K and log g = 4.0. The top and bottom red dashed lines show models (with log g = 4.0) compatible with the photometry with T_eff = 11   580 K and T_eff = 10   357 K, respectively.