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Fig. 9.


Top panel: dependence of the final fraction of donated halo stars on the adopted fraction of first-generation stars. The solid, dashed, and dash-dotted lines are for ratios of 0.5 (Carretta et al. 2009), 0.32 (Bastian & Lardo 2015), and 0.09, the minimum value in the catalog of Milone et al. (2017). This calculation adopted a ratio of an early mass-loss fraction (Sect. 5.1.3) of 56% and an average present-day GC mass of 2.2 × 105M. Middle panel: influence of the number of present-day GCs in our analysis. Here, the solid line shows the 157 objects in the Harris (1996) catalog, while the dashed lines correspond to a variation by ±25%, e.g., due to selecting only halo GCs. Bottom panel: dependence on the adopted mean present-day GC mass. Red lines show the masses based on the Harris (1996) catalog adopted in this work (solid), the catalog of GC masses from McLaughlin & van der Marel (McLaughlin & van der Marel, dashed), and a mass of 5 × 105M (dotted) as adopted by Martell et al. (2011). Here, the calculations adopted a ratio of first- to second-generation stars of 50:50 and an early mass-loss rate of 56%.

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