Reviewing the frequency and central depletion of Ultra-Diffuse Galaxies
  in galaxy clusters from the KIWICS survey
  The number of Ultra-Diffuse Galaxies (UDGs) in clusters is of significant
importance to constrain models of their formation and evolution. Furthermore,
their distribution inside clusters may tell us something about their
interactions with their environments. In this work we revisit the abundance of
UDGs in a more consistent way than in previous studies. We add new data of UDGs
in eight clusters from the Kapteyn IAC WEAVE INT Clusters Survey (KIWICS),
covering a mass range in which only a few clusters have been studied before,
and complement these with a compilation of works in the literature to
homogeneously study the relation between the number of UDGs and the mass of
their host cluster. Overall, we find that the slope of the number of
UDGs$-$cluster mass relation is consistent with being sublinear when
considering galaxy groups or linear if they are excluded, but we argue that
most likely the behavior is sublinear. When systematically studying the
relation between the projected distance to the innermost UDG and M$_{200}$ for
each cluster, we find hints that favor a picture in which massive clusters
destroy UDGs in their centres.
