Lithium abundance distribution for a sample of stars with stellar parameters in the range 5500 K ≤ Teff ≤ 6500 K, 3.5 ≤ logg ≤ 4.5, − 3.0 ≤[Fe∕H] ≤ − 1.5, plotted as a function of effective temperature (top) and metallicity (bottom). By construction, all stars lie on a perfectly flat, infinitely thin Spite plateau at A(Li) = 2.2 when analyzed with 3D NLTE model spectra (dashed line). The corresponding 1D LTE (stars) and 1D NLTE (dots) abundances are derived by applying fitting functions FFI3DNLTE and FFI1DNLTE, respectively.See legend for further details.
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