Extinction map and distribution of the cluster member stars. (a) Spatial variation of A_V (in magnitudes) derived from the BAYESTAR19 dust model (G. M. Green et al. 2019). Contours and color scale indicate the extinction level across the cluster field. (b) Distribution of individual A_V values for member stars. The red curve shows the Gaussian fit to the distribution, while the dashed vertical line marks the mean value. The shaded region indicates the ±1σ interval.