Upper panel: RV of the spectroscopic targets as a function of distance from the cluster center. The horizontal lines represent our velocity cuts (±15 km s⁻¹). Middle panel: metallicity of the spectroscopic targets as a function of distance from the cluster center. The horizontal lines represent our metallicity cuts (±0.20 dex). For both panels the color-coding is the same as in Fig. 3. Lower panel: radial density profile of the photometric sources with respect to the cluster center. The dotted curve indicates the best fit of a King (1962) radial profile.