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Table 2.

Parameters of the clusters used to generate the isochrones and ZAHBs.

Cluster name [Fe/H](¶) Age(¶) Distance(§) Distance (adopted) [α/Fe](&) Initial mass on HB(@)
(dex) (Gyr) (kpc) (kpc) (M)
Arp 2 −1.45 10.9 28.6 28.6 0.31(a) 0.80
Terzan 8 −1.80 12.2 26.7 30.0 0.37(a) 0.80
M 54 −1.25 10.7 26.7(*) 26.7 0.21(b) 0.85
Terzan 7 −0.56 7.3 22.8 22.8 −0.03(c) 1.00
NGC 5634 −1.94 11.8 27.2 27.2 0.20(d) 0.80
NGC 2419 −2.14 12.3 83.2 100.2 0.13(e) 0.80
NGC 4147 −1.50 12.0 18.2 19.9 0.38(f) 0.85
Pal 12 −0.83 8.8 19.0 19.0 −0.20(g) 0.90
NGC 6284 −1.13 11.1 15.1 15.1 0.47(h) 0.90

Notes. (¶) from Forbes & Bridges (2010); (§) from Baumgardt et al. (2019); (*)Hamanowicz et al. (2016); (&) the allowed range of [α/Fe] is between 0.0 and 0.3, when the literature value is out of the allowed range, the value closest to the range is selected; (@)Valcarce et al. (2012); (a) Mottini et al. (2008); (b)Brown et al. (1999); (c)Sbordone et al. (2003); (d)Carretta et al. (2017); (e)Sharina et al. (2013); (f)Villanova et al. (2016); (g)Brown et al. (1995); (h)Puzia et al. (2005).

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