Fig. 11
Position of GCIRS 7 in the H-R diagram (cross) compared with evolutionary tracks of stars with initial masses between Mini = 15 − 32 M⊙ with rotation (blue solid) and for Mini = 20 − 25 M⊙ without rotation (dashed green) from Ekström et al. (2012). The solid black lines denote the theoretical luminosities of stars with radii of R = 900,1100, and 1300 R⊙ as a function of effective temperature.
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