Comparison to the Carina OB star sample of Mohr-Smith et al. (2017). The top panel shows the sky distribution, while the bottom panels show one-to-one comparisons for extinction (left) and effective temperature (right). In each panel, the points are colour-coded by R_V, as determined by Mohr-Smith et al. (2017). The black circles in the bottom-right panel show the spectroscopically measured effective temperatures, available for a subset of the OB stars.