Result of our Bayesian analysis for the stars in our dataset. Lower left: Stars with boron upper limit (blue circles with leftward arrows) and the stars with boron measurement (black circles) in the v sin i versus Π diagram. Stars with a clear sign of nitrogen enhancement are marked with a yellow edge, and stars with magnetic field detection are marked with a green edge (see text). Stellar numbers are shown if a star is nitrogen enhanced, magnetic field detected, or a member of NGC 3293. Four stars (Star 15, 27, 70, 80) showing Π or the upper limit on Π larger than 1.0 are placed at Π = 1.0 for better visibility. Upper left: Distribution of Π of stars with boron upper limit (blue) and boron measurement (black). The results are stacked. The distribution corresponding to slow rotators (v sin i < 50 km s⁻¹) is shown in red. The numbers corresponding to each group are presented in the legend, and the numbers in parentheses are the number of stars with Π < 0.6 in each group. Lower right: Distribution of v sin i of stars. The distribution corresponding to the low Π group (Π < 0.6) is shown in red. The number of corresponding stars is shown in the legend.