Position of our stars in the HR diagram. The displayed evolutionary tracks are from Vassiliadis & Wood (1994), with metallicities of Z = 0.001 (upper panel), and Z = 0.004 (lower panel), and are labelled with their initial mass in M⊙. The location of each star is shown in black in the appropriate diagram and in grey in the other to compare the position of the different data points.
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