Location of the 8 stars discussed in Sect. 5.2.3 in the ν sin i – ν_mac, and sHR diagrams. Same color code as is previous figures. The four pulsating or spotted B main-sequence stars considered by Aerts et al. (2014) are identified with square symbols, while the remaining OB stars surveyed by the IACOB project, with still unknown pulsational properties, are indicated with circles. The cyan and dark blue shaded regions in the sHR diagram indicate the instability domains for heat-driven p and g modes, respectively, with ℓ = 1 computed by Godart et al. (2016). The dashed red lines in the same figure indicate the isocontours of the quantity P_turb(max)/P as computed by Grassitelli et al. (2015a).