Fig. 2
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Evolution of ULX numbers in GCs. Expected number of ULXs (E[NULX]) as a function of time since GC formation. All simulations with non-zero expected rates are presented. The line indicates the number of simulations with non-zero predictions (i.e., number of dots in this time bin). Each time bin spans 300 Myr and the points are centered on these bins.
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