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Fig. 5


H-R diagram showing evolutionary tracks (red dashed line) with 60 M and 20 M for an initial rotation rate of ≈400 km s-1 (Brott et al. 2011a). The ZAMS is indicated by the black full line and the isochrone 5 Myr is indicated by the black, dot-dashed line. The green and blue line show the isochrones 1 Myr and 3 Myr, respectively. Blue filled square indicates the position of MPG 355, while the red squares show the positions of the two stars that rotate faster than 300 km s-1. The black square indicates the position of MPG 523.

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