Fig. 7.

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(u − r)−(r − z) colour–colour diagram of the initial sample of GC candidates (blue) of Nube. The green squares are the location of NGC 5128 candidates in Taylor et al. (2017) with a probability of greater than 95% of being true GCs. The black dashed line indicates the convex hull (envelope) computed as the smallest region containing all the green squares.

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