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Fig. 6

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Location of AH Sco, UY Sct, and KW Sgr in the HR diagram using our fundamental parameters. Also shown is the position of VY CMa from Wittkowski et al. (2012), Betelgeuse from Ohnaka et al. (2011), and VX Sgr from (Chen & Shen 2008; Chiavassa et al. (2010). The positions of the stars are compared to evolutionary tracks from Ekström et al. (2012) for masses of 15 M, 20 M, 25 M, 32 M, and 40 M. The solid lines are models without rotation, and the dashed lines are with rotation.

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