Fig. 4.
Evolution of the scale height of OCs with OC age. The 3376 OCs within 4.0 kpc of the Sun are divided into 32 bins according to their ages. The blue line indicates the evolution of the scale height with cluster age. The blue dots correspond to the typical values of log10(age) in each bin. The solid magenta dots show the distances of the OCs to the Galactic plane as a function of cluster age.
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