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Table 5

Age of our targets estimated by comparing their position in the HRD with PMS tracks from Hosokawa & Omukai (2009, third column) and main-sequence tracks from Brott et al. (2011, fourth column).

Star PMS PMS MS
track lifetime lifetime
[M] [Myr] [Myr]

B111 25 0–2
B163 6 0.14
B164 25 0.01 0–2
B215 10 0.03
B243 6 0.20
B253 6 0.20
B268 6 0.20
B275 8 0.04
B289 20 0.02
B311 20 0.02 0–2
B331 12 0.02
B337 8 0.04

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