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Fig. 4

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HR diagram showing the position of an SMC K4–5I star. The evolutionary tracks are taken from Brott et al. (2011) and have an initial rotational velocity of 300 km s-1 and the SMC composition. The dots on the tracks indicate the ages in Myr. The uncertainty on the red supergiant parameters reflect the range of values determined for SMC K4–5I stars in the study of Levesque et al. (2006).

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