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Table 1
Stellar parameters of α Cen B and K2-138, as obtained from the various iron line lists.
| α Cen B | K2-138 | |||||||
|---|---|---|---|---|---|---|---|---|
| Iron line list | Teff(K) | log g | ξ (km s−1) | [Fe/H] | Teff (K) | log g | ξ (km s−1) | [Fe/H] |
| Biazzo et al. (2012) | 5285 ± 60 | 4.49 ± 0.14 | 0.909 ± 0.121 | 0.200 ± 0.051 | 5275±50 | 4.50 ± 0.11 | 0.945 ± 0.099 | 0.084 ± 0.043 |
| Doyle et al. (2017) | 5245 ± 32 | 4.35 ± 0.08 | 0.490 ± 0.146 | 0.185 ± 0.043 | 5235 ± 30 | 4.43 ± 0.07 | 0.450 ± 0.146 | 0.083 ± 0.034 |
| Feltzing & Gonzalez (2001) | 5330 ± 41 | 4.48 ± 0.11 | 0.890 ± 0.100 | 0.220 ± 0.040 | 5280±38 | 4.46 ± 0.10 | 0.915 ± 0.084 | 0.100 ± 0.035 |
| Jofré et al. (2014) | 5210 ± 77 | 4.31 ± 0.11 | 0.500 ± 0.221 | 0.181 ± 0.063 | 5210±66 | 4.37 ± 0.11 | 0.555 ± 0.190 | 0.069 ± 0.054 |
| Meléndez et al. (2014) | 5270 ± 35 | 4.37 ± 0.08 | 0.755 ± 0.133 | 0.174 ± 0.044 | 5255 ± 24 | 4.44 ± 0.06 | 0.767 ± 0.105 | 0.070 ± 0.031 |
| Morel et al. (2014) | 5265 ± 31 | 4.35 ± 0.09 | 0.795 ± 0.102 | 0.197 ± 0.031 | 5275 ± 31 | 4.45 ± 0.08 | 0.870 ± 0.089 | 0.089 ± 0.032 |
| Reddy et al. (2003) | 5320 ± 38 | 4.51 ± 0.11 | 0.900 ± 0.062 | 0.218 ± 0.036 | 5295 ± 29 | 4.52 ± 0.09 | 0.958 ± 0.046 | 0.092 ± 0.027 |
| Tsantaki et al. (2019) | 5190 ± 64 | 4.26 ± 0.09 | 0.590 ± 0.149 | 0.163 ± 0.048 | 5140 ± 81 | 4.35 ± 0.08 | 0.485 ± 0.198 | 0.050 ± 0.049 |
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