Main panel: distribution of the median of v sin i obtained through the GoF method of IACOB-BROAD against the SpT, separated into stars with LCs I and II. The solid error bars indicate the upper and lower limits corresponding to the 75% and 25% percentiles, and the dashed error bars correspond to 90% and 10% percentiles. Stars without LC or SB2+ systems are not included. Small panel: histogram of the subsample of B1 I–II stars against the v sin i for a better interpretation of the main paneland Sect. 4.3. The error bars corresponding to the B1 I–II stars are plotted horizontally.