Fig. 8 continued. Models of the soft X-ray surface brightness profiles for the stellar mass-selected sample with mass M^* > 1.7 × 10¹¹ M_⊙ (left, 11.25) and M^* > 3.1 × 10¹¹ M_⊙ (11.5, right). The deviations between the model and the data indicate either that the model needs more complexity to account for the data or that the estimator suffers from additional systematic uncertainties. These data sets will constitute an important benchmark for future models. The models indicate that the hot gas emission becomes dominant for these samples.