NGC 2808 astro-photometric catalog

We detect different kinematical behaviors between the first- and second-generation populations. This is especially evident towards the external regions of the cluster, where second-generation stars are increasingly more radially anisotropic.

Our results are in agreement with theoretical simulations that predict that second-generation stars, initially more concentrated in the inner regions, gradually diffuse outward and develop a stronger radially anisotropic velocity distribution with respect to the first-generation stars. We find the central regions of the cluster to exhibit a higher degree of energy equipartition than the outskirts; our analysis reveals similar levels of energy equipartition in the radial and tangential components of the motion within about 4r_h_ , while outside 4r_h_ the data suggest that the equipartition level of the radial component of the velocity dispersion is slightly higher than that of the tangential component.