Fig. 9
Age distribution of OCs within the representative sample (D ≤ 3 kpc), using a logarithmic bin width of Δlog (Age/yr) = 0.25 and Poisson uncertainties. The solid curve corresponds to the fitted age distribution from Eq. (12), following Lamers & Gieles (2006), with best-fit parameters CFR = 0.93 ± 0.09 Myr-1 and Mmax = (4.46 ± 0.85) × 104 M⊙.
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