Fig. 8
Generalized histogram of the age of 54 known stars from Crowther et al. (2016, shown in Fig. 7). We used PARSEC isochrones at different ages to estimate the age-range for each spectroscopically known star. This result can be compared with the age distribution of this sample that was observed in the UV by Crowther et al. (2016, their Fig. 11).
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