Top panel: average clustering of GCs around UCDs at different radial bins from the UCDs for the full GC population (green) and the red and blue subpopulations are shown. The black data points are the comparison with autoclustering of the GCs with themselves as a baseline. The clustering signal at each radial bin is the ratio between measured surface density and expected surface density of globular clusters from the large scale distribution, at different radial distances from the UCDs. The black line denotes the null level at which we have no clustering signal compared to what we expect. We averaged the clustering signal for each respective radial bin over the full probed sample of 206 UCDs. Bottom panel: the same plot for the 100 UCDs for which we found a GC candidate within r< 1 kpc. The two y-axis have different scaling.
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