Fig. 5

SED of the proposed progenitor (filled circles) and SSP models with cluster ages of 60 Myr, 600 Myr and 1 Gyr (left), and an F8 supergiant model together with a T = 6000 K blackbody (right). The SED of the 60 Myr-old cluster that may contain a M > 8 M⊙ star is clearly incompatible with the measured fluxes. The older clusters that fit the data better are too old to support the presence of such a massive progenitor.
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