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Table 1

Lithium abundances derived for three members of NGC 6397 with different line formation models.

Group Teff log g [Fe∕H] A(Li) A(Li) A(Li)
[K] 1D NLTE 1D LTE 3D NLTE
TOP 6354 4.01 − 2.23 2.26 2.30 2.30
SGB 5905 3.71 − 2.19 2.39 2.44 2.43
bRGB 5556 3.38 − 2.13 1.46 1.46 1.50

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