Mean gas mass fraction profiles (see Eq. (7)) of the five different gas phases around all halos in our sample (top), only galaxy clusters (middle), and only galaxy groups (bottom). The radial boundary at which the hot gas phase is no longer dominant is shown by grey vertical lines and is about R_HOT ∼ 0.91, 1.20 and 0.61 for the all groups and clusters, only clusters, and only groups, respectively.