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Table 2

Difference in equivalent width between LTE and non-LTE for K lines in the near-infrared with wavelength λ.

λ [Å] Elow [eV] GJ 179 [%] GJ 203 [%] GJ 514 [%] GJ 880 [%] GJ 908 [%] GJ 179 eq.w GJ 908 eq.w
7699.0 0.000 −1.3 −2.4 −3.6 −2.9 −4.9 −3.47 −3.85
11 019.8 2.670 −1.1 −1.1 −1.4 −1.4 −0.6 −4.95 −5.79
11 022.6 2.670 −1.2 −1.1 −1.4 −1.6 −0.8 −5.09 −5.93
11 690.2 1.610 −4.9 −6.8 −8.5 −8.0 −7.8 −4.15 −4.39
11 769.6 1.617 −6.6 −9.2 −12.1 −11.3 −13.4 −4.49 −4.94
11 772.8 1.617 −5.9 −8.9 −12.9 −11.7 −13.7 −4.11 −4.50
12 432.3 1.610 −6.3 −9.1 −12.5 −11.5 −14.4 −4.39 −4.88
12 522.1 1.617 −5.5 −8.2 −11.0 −9.9 −12.0 −4.19 −4.61
13 377.8 2.670 −1.6 −0.2 −2.2 −1.2 ... −6.04 −6.83
15 163.1 2.670 −0.8 −0.6 −0.9 −0.9 −0.6 −4.39 −4.87
15 168.4 2.670 −0.8 −0.6 −1.0 −0.8 −0.6 −4.47 −5.02

Notes. The second column gives the energy of the lower level of the transition (Elow). The last two columns show the reduced equivalent width calculated from the LTE synthetic spectra for GJ 179 and GJ 908, which have the strongest and the weakest lines, respectively. The differences in equivalent width are calculated as (LTE−non-LTE)/non-LTE⋅100. The K I line at 13 377.8 Å in the star GJ 908 was too weak for the measurement of equivalent widths. The reduced equivalent widths are calculated by log (eq.widthLTE/λ).

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