Fig. 18.
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Comparison between OCs and GCs. Total fraction of binaries in the core of open clusters (aqua circles) and GCs (red crosses) as a function of the logarithm of cluster age (panel a), dynamical age (panel b), and cluster mass (panel c). The GC binary fractions are taken from Milone et al. (2012, 2016), while GC masses are from Baumgardt & Hilker (2018).
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