Table 2: Stellar parameters and potassium abundances of the sample stars.
Star $T_{\rm eff}$ log g [Fe/H] $\xi$$_{\rm t}$ [K/Fe] [K/Fe] [K/Fe]
          7699 7665 Average
  (K)     (km s-1) LTE NLTE LTE NLTE LTE NLTE
HD 224930 5480 4.45 -0.66 0.9 +0.60 +0.28 +0.55 +0.29 +0.58 +0.29
G69-8 5640 4.43 -0.55 1.1 +0.64 +0.25 +0.60 +0.25 +0.62 +0.25
HD 17948 6325 4.13 -0.35 1.9 +0.50 -0.02 - - +0.50 -0.02
HD 22309 5900 4.29 -0.31 1.3 +0.40 -0.02 - - +0.40 -0.02
HD 22879 5775 4.26 -0.83 1.1 - - +0.65 +0.22 +0.65 +0.22
HD 241253 5850 4.25 -1.05 1.2 +0.60 +0.18 - - +0.60 +0.18
HD 243357 5675 4.38 -0.59 1.1 +0.60 +0.29 - - +0.60 +0.29
HD 36283 5475 4.28 -0.41 0.8 +0.60 +0.31 +0.60 +0.34 +0.60 +0.33
G99-21 5525 4.30 -0.63 1.0 +0.60 +0.29 - - +0.60 +0.29
HD 250792 5600 4.32 -1.02 1.1 +0.65 +0.30 - - +0.65 +0.30
HD 56513 5630 4.53 -0.45 1.2 +0.33 +0.04 +0.28 +0.07 +0.31 +0.06
HD 58551 6190 4.23 -0.53 1.8 +0.55 +0.05 - - +0.55 +0.05
HD 59374 5840 4.37 -0.83 1.4 +0.66 +0.19 +0.58 +0.18 +0.62 +0.19
HD 59984 5925 3.94 -0.74 1.2 +0.75 +0.22 - - +0.75 +0.22
HD 60319 5875 4.17 -0.82 1.4 +0.68 +0.25 +0.70 +0.28 +0.69 +0.27
HD 233511 6015 4.29 -1.57 1.4 +0.46 +0.24 - - +0.46 +0.24
G235-45 5500 4.25 -0.59 1.1 +0.75 +0.40 - - +0.75 +0.40
HD 88446 5915 4.03 -0.44 1.6 +0.55 +0.00 - - +0.55 +0.00
HD 88725 5665 4.35 -0.70 1.2 +0.55 +0.25 +0.55 +0.24 +0.55 +0.25
HD 91784 5890 4.47 -0.33 1.3 +0.55 +0.22 - - +0.55 +0.22
G119-32 5715 4.39 -1.88 1.2 +0.42 +0.21 - - +0.42 +0.21
HD 96094 5900 4.01 -0.46 1.7 +0.58 +0.05 - - +0.58 +0.05
HD 97855A 6240 4.13 -0.44 1.8 +0.60 +0.07 +0.58 +0.00 +0.59 +0.04
BD+20$^\circ$2594 5900 4.30 -0.81 1.4 +0.36 -0.06 - - +0.36 -0.06
HD 104056 5875 4.31 -0.41 1.3 +0.50 +0.10 +0.50 +0.12 +0.50 +0.11
HD 108076 5725 4.44 -0.73 1.2 +0.50 +0.17 +0.50 +0.17 +0.50 +0.17
HD 114606 5610 4.28 -0.57 1.2 +0.65 +0.35 - - +0.65 +0.35
HD 118659 5510 4.36 -0.60 1.0 +0.60 +0.40 +0.55 +0.36 +0.58 +0.38
HD 119288 6420 4.13 -0.17 1.9 +0.35 -0.12 - - +0.35 -0.12
HD 123710 5790 4.41 -0.54 1.4 +0.60 +0.21 - - +0.60 +0.21
HD 126512 5825 4.02 -0.64 1.6 +0.70 +0.25 +0.70 +0.22 +0.70 +0.24
HD 134169 5930 3.98 -0.86 1.8 +0.80 +0.42 - - +0.80 +0.42
HD 142267 5807 4.42 -0.46 1.0 +0.58 +0.15 - - +0.58 +0.15
HD 144061 5815 4.44 -0.31 1.2 +0.50 +0.10 - - +0.50 +0.10
HD 148816 5880 4.07 -0.78 1.2 +0.75 +0.24 - - +0.75 +0.24
HD 149996 5665 4.09 -0.52 1.2 +0.60 +0.28 +0.60 +0.26 +0.60 +0.27
BD+68$^\circ$901 5715 4.51 -0.25 1.4 +0.35 +0.00 - - +0.35 +0.00
HD 157089 5800 4.06 -0.59 1.2 +0.63 +0.16 +0.65 +0.19 +0.64 +0.18
HD 157466 5990 4.38 -0.44 1.1 +0.45 +0.02 - - +0.45 +0.02
HD 158226 5805 4.12 -0.56 1.1 +0.82 +0.34 +0.78 +0.29 +0.80 +0.32
G170-56 6030 4.31 -0.79 1.3 +0.44 -0.02 - - +0.44 -0.02
HD 160933 5765 3.85 -0.27 1.2 +0.45 -0.08 +0.45 -0.08 +0.45 -0.08
HD 160693 5850 4.31 -0.60 1.2 +0.65 +0.19 - - +0.65 +0.19
HD 170357 5665 4.07 -0.50 1.2 +0.60 +0.35 - - +0.60 +0.35
HD 171620 6115 4.20 -0.50 1.4 +0.60 +0.13 +0.60 +0.15 +0.60 +0.14
G142-2 5675 4.48 -0.75 1.1 +0.55 +0.25 - - +0.55 +0.25
HD 182807 6100 4.21 -0.33 1.4 +0.52 +0.06 - - +0.52 +0.06
HD 184448 5765 4.16 -0.43 1.2 +0.65 +0.27 - - +0.65 +0.27
HD 186379 5865 3.93 -0.41 1.2 +0.48 +0.02 - - +0.48 +0.02
HD 198300 5890 4.31 -0.60 1.2 +0.65 +0.31 +0.63 +0.31 +0.64 +0.31
HD 200580 5940 3.96 -0.82 1.4 +0.85 +0.33 - - +0.85 +0.33
HD 204155 5815 4.09 -0.66 1.2 - - +0.58 +0.17 +0.58 +0.17
G188-22 6040 4.37 -1.25 1.5 +0.48 +0.20 +0.50 +0.16 +0.49 +0.18
HD 208906 6025 4.37 -0.76 1.4 +0.55 +0.09 - - +0.55 +0.09
G242-4 5815 4.31 -1.10 1.2 +0.60 +0.16 +0.60 +0.16 +0.60 +0.16
HD 215257 6030 4.28 -0.58 1.4 +0.60 +0.20 +0.60 +0.14 +0.60 +0.17
HD 218209 5665 4.40 -0.60 1.1 +0.65 +0.30 +0.65 +0.33 +0.65 +0.32
HD 221876 5865 4.29 -0.60 1.2 +0.50 +0.14 +0.50 +0.08 +0.50 +0.11

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