Fig. 6
Cumulative distribution of estimated radial velocities for the 307 single B-type stars. The dashed vertical line indicates the weighted mean velocity of the sample, vr = 271.6 kms-1 (calculated excluding stars in the two older clusters and the candidate runaways). The vertical dotted lines are the 3σ thresholds adopted for identification of potential runways (±36.6 kms-1).
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