Fig. 4
Absolute magnitude distribution of GCs and UCDs shown in Fig. 3. The dotted vertical line indicates the magnitude limit adopted between UCDs and GCs. The curves show Gaussian GCLFs normalized to match the object counts at the UCD magnitude limit. The three lines correspond to different widths σ of the Gaussians: 1.30, 1.35, and 1.40 mag. The completeness of the spectroscopic surveys drops at about the UCD limit.
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