Jellyfish galaxies in violent neighbourhoods

In a hierarchical Universe, galaxy clusters continue to grow with cosmic time, and thus a large number of them are disturbed by accretion of groups or major collisions. Hydrodynamical numerical simulations show that ram pressure stripping can be enhanced during cluster interactions providing an alternative way of forming jellyfish galaxies. In this work, we built a reliable sample of interacting galaxy clusters using different interaction criteria such as the magnitude gap between the two brightest cluster galaxies (BCG), X-ray center and BCG offset, X-ray morphology, and DS substructure analysis. We use X-ray and optical data to investigate the influence of the collisions between clusters on the galaxies' gas stripping, supplying a statistical analysis of the position of the jellyfishes from the WINGS and GASP surveys with respect to cluster substructures. In our preliminary results, we show notorious cases of jellyfishes near discontinuity regions of the intracluster medium.