Clustercentric Distance or Local Density? It Depends on Galaxy Morphology

Determining which between projected local density and distance from the cluster center plays a major role in regulating morphological fractions clusters is longstanding debate. Reaching definitive answer will shed light on main physical mechanisms at play most extreme environments. Here we make use of data OmegaWINGS survey, currently largest survey Universe extending beyond 2 virial radii cores, to extend previous analysis outside radius. Local clustercentric seems different roles for galaxies morphology: fraction elliptical mainly depends density, suggesting that their formation was linked primordial densities, now correspond cores. Only low mass ellipticals shows an anticorrelation with distance, origin these objects. Excluding galaxies, relative S0s spirals instead only far while within radius proportion regulated by specific processes halt star transform Sp into S0s. This interpretation supported literature results kinematical early late type according fast slow rotators have distinct dependencies halo density.