Fig. 3.
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Histogram of tangential velocities of the stars in the OBA sample with ϖ/σϖ > 10. The combined OBA star sample is shown as well as the individual O, B, and A star samples (based on the classifications from the ESP-HS module). The limits in tangential velocity separating the thin disc, thick disc, and halo populations are shown as vertical dashed lines.
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