Fig. 3

Top-left panel: J × (J − KS) CMDs of Pismis 24 showing the observed photometry for representative cluster and field regions. Middle-left panel: equal-area extraction from the comparison field. Bottom-left panel: the decontaminated CMDs fitted with Padova isochrones 0.2, 1, 3, 5, and 7 Myr, together with the colour–magnitude filter (brown polygon) used to isolate the MS and PMS stars. Right panels: the same for BDS 101. The reddening vector for Av = 0−5 mag is shown.
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