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Table 1.

Sample clusters, their parameters, and average maximum Li abundance.

Cluster Age RGC [Fe/H] A(Li)max N stars Teff range
(Gyr) (kpc) used (K)
NGC 6530 0.002 6.76 −0.041 ± 0.009 3.38 ± 0.06 8 4490–5300
Trumpler 14 0.002 7.62 −0.03 ± 0.016 3.45 ± 0.07 62 4200–5150
Chamaeleon I 0.002 8.0 −0.07 ± 0.017 3.25 ± 0.11 23 3475–4310
ρ Oph 0.003 8.0 −0.08 ± 0.006 3.34 ± 0.14 13 3390–4630
NGC 2264 0.003 8.71 −0.06 ± 0.04 3.31 ± 0.07 12 4032–5154
IC 4665 0.028 7.65 0.00 ± 0.02 3.32 ± 0.16 12 5240–6250
IC 2602 0.03 7.95 −0.02 ± 0.10 3.29 ± 0.18 10 5290–6705
NGC 2547 0.035 8.04 −0.006 ± 0.009 3.27 ± 0.14 21 5615–6930
NGC 6067 0.10 6.81 0.20 ± 0.08 3.41 ± 0.13 4 6630–7370
NGC 2516 0.11 7.98 −0.06 ± 0.05 3.20 ± 0.07 5 6580–6950
NGC 6259 0.21 7.03 0.21 ± 0.04 3.40 ± 0.06 4 6600–7050
NGC 6705 0.30 6.33 0.16 ± 0.04 3.43 ± 0.12 10 7050–7470
Berkeley 81 1 5.49 0.22 ± 0.07 3.45 ± 0.15 11 6490–7480
NGC 6802 1.00 6.96 0.10 ± 0.02 3.36 ± 0.14 5 6760–7230
Ruprecht 134 1.00 4.60 0.26 ± 0.06 3.42 ± 0.10 11 6500–6990
Trumpler 20 1.4 6.86 0.15 ± 0.07 3.38 ± 0.13 4 7025–7170
NGC 2420 2.20 10.76 −0.13 ± 0.04 3.05 ± 0.07 21 6290–6550 (upper TO)
NGC 2243 4.9 10.4 −0.38 ± 0.04 2.96 ± 0.06 5 5890–6190 (upper TO)

Notes. Ages and metallicities were taken from Spina et al. (2017), Magrini et al. (2017), Randich et al. (2018), Casali et al. (2019). The error bars represent the standard deviation of the stars that contribute to the calculation of the mean. The actual error in the mean is a factor of smaller.

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