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Table 6
Elemental abundances of our target stars.
| HE 1523–0901 | HD 6268 | HD 121135 | HD 195636 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| El | log A | σ | n | [El/Fe] | log A | σ | n | [El/Fe] | log A | σ | n | [El/Fe] | log A | σ | n | [El/Fe] |
| ± | ± | ± | ± | |||||||||||||
| C | 4.99 | – | – | −0.62 | 5.05 | – | – | −0.84 | 6.55 | – | – | −0.48 | 4.89 | – | – | −0.76 |
| N | 5.79 | – | – | 0.78 | 6.20 | – | – | 0.91 | – | – | – | – | – | – | – | – |
| O | 6.65 | – | 1 | 0.78 | 7.05 | – | 1 | 0.90 | 8.28 | – | 1 | 0.99 | 7.14 | – | 1 | 1.23 |
| NLTE | 6.60 | – | 1 | 0.73 | 7.15 | 0.15 | 2 | 1.00 | 7.90 | 0.04 | 2 | 0.61 | 7.04 | – | 1 | 1.13 |
| Na | 3.60 | – | 2 | 0.18 | 4.15 | – | 2 | 0.45 | 5.20 | – | 2 | 0.36 | 4.05 | – | 2 | 0.59 |
| NLTE | 3.10 | – | 2 | −0.32 | 3.43 | – | 2 | −0.27 | 4.75 | 0.10 | 4 | −0.09 | 3.50 | – | 2 | 0.04 |
| Mg | 5.14 | 0.05 | 5 | 0.36 | 5.38 | 0.07 | 5 | 0.32 | 6.27 | 0.05 | 5 | 0.07 | 5.40 | 0.06 | 5 | 0.58 |
| NLTE | 5.14 | 0.12 | 5 | 0.36 | 5.44 | 0.12 | 5 | 0.38 | 6.53 | 0.12 | 5 | 0.33 | 5.46 | 0.12 | 5 | 0.64 |
| Al | 3.00 | – | 1 | −0.63 | 3.05 | – | 1 | −0.86 | 4.10 | – | 1 | −0.95 | 3.01 | – | 1 | −0.66 |
| NLTE | 3.16 | – | 2 | −0.47 | 3.27 | – | 1 | −0.64 | 4.77 | – | 2 | −0.28 | 3.69 | – | 1 | 0.02 |
| Si | 5.18 | – | – | 0.49 | 5.18 | – | 0.21 | 6.00 | – | – | 0.44 | 5.20 | – | 1 | 0.47 | |
| K | 2.68 | – | 1 | 0.47 | 2.94 | – | 1 | 0.45 | 4.05 | – | 1 | 0.42 | 2.75 | – | 1 | 0.50 |
| NLTE | 2.51 | – | 1 | 0.30 | 2.80 | – | 1 | 0.31 | 3.71 | – | 1 | 0.08 | 2.81 | – | 1 | 0.56 |
| Ca | 3.78 | 0.12 | 20 | 0.26 | 4.10 | 0.11 | 20 | 0.30 | 5.24 | 0.12 | 20 | 0.30 | 4.10 | 0.13 | 12 | 0.54 |
| Sc | 0.10 | 0.09 | 5 | −0.23 | 0.35 | – | 3 | −0.26 | 1.52 | – | 3 | −0.23 | 0.37 | 0.11 | 4 | 0.00 |
| Ti I | 2.35 | 0.12 | 25 | 0.22 | 2.70 | 0.12 | 29 | 0.29 | 3.78 | 0.15 | 36 | 0.23 | 2.68 | 0.13 | 5 | 0.49 |
| Ti II | 2.34 | 0.11 | 24 | 0.21 | 2.74 | 0.10 | 23 | 0.33 | 3.82 | 0.16 | 13 | 0.25 | 2.56 | 0.12 | 23 | 0.40 |
| Cr | 2.67 | 0.14 | 5 | −0.15 | 2.96 | 0.08 | 5 | −0.14 | 4.13 | 0.15 | 12 | −0.11 | 2.71 | 0.06 | 2 | −0.15 |
| Mn | 1.60 | – | 4 | −1.01 | 1.80 | – | 4 | –1.09 | 3.20 | – | 4 | −0.83 | 1.80 | – | – | −0.85 |
| NLTE | 2.10 | – | – | −0.51 | 2.30 | – | – | −0.59 | 3.70 | – | – | −0.33 | 2.30 | – | – | −0.35 |
| Fe I | 4.68 | 0.15 | 174 | – | 4.96 | 0.15 | 158 | – | 6.10 | 0.12 | 151 | – | 4.72 | 0.12 | 91 | – |
| Fe II | 4.67 | 0.12 | 31 | – | 4.96 | 0.10 | 26 | – | 6.11 | 0.15 | 33 | – | 4.73 | 0.10 | 21 | – |
| Co | 2.00 | 0.03 | 3 | −0.17 | 2.15 | – | 3 | −0.30 | 3.30 | 0.08 | 3 | −0.29 | 2.18 | 0.01 | 2 | −0.03 |
| Ni | 3.55 | 0.16 | 22 | 0.15 | 3.74 | 0.09 | 15 | 0.06 | 4.87 | 0.12 | 47 | 0.05 | 3.69 | 0.11 | 4 | 0.25 |
| Cu | – | – | – | – | – | – | – | – | 2.11 | – | 1 | −0.68 | – | – | – | – |
| NLTE | – | – | – | – | 1.30 | 0.15 | 2 | −0.35 | 2.60 | 0.10 | 2 | −0.19 | – | – | – | – |
| Zn | 1.88 | 0.04 | 2 | 0.14 | 2.15 | – | 3 | 0.13 | 3.17 | 0.05 | 3 | 0.01 | 2.10 | – | 2 | 0.32 |
| Sr | 0.45 | – | 2 | 0.40 | 0.48 | – | 2 | 0.15 | 1.43 | 0.03 | 2 | −0.04 | −0.12 | – | 2 | −0.21 |
| NLTE | 0.39 | 0.20 | 2 | 0.34 | 0.44 | 0.12 | 3 | 0.11 | 1.46 | – | 1 | −0.01 | −0.10 | 0.12 | 2 | −0.19 |
| Y | −0.28 | 0.08 | 15 | 0.34 | −0.54 | 0.07 | 13 | −0.21 | 0.47 | 0.07 | 18 | −0.34 | – | – | – | – |
| Zr | 0.34 | 0.13 | 12 | 0.58 | 0.29 | 0.07 | 9 | 0.25 | 1.35 | 0.05 | 8 | 0.17 | – | – | – | – |
| Mo | −0.22 | – | 1 | 0.72 | – | – | – | – | 0.75 | – | 1 | 0.27 | – | – | – | – |
| Ru | 0.10 | 0.09 | 3 | 1.17 | – | – | – | – | 0.40 | – | 2 | 0.05 | – | – | – | – |
| Ba | 0.19 | 0.05 | 4 | 0.83 | 0 | 0.16 | 4 | 0.36 | 0.84 | 0.22 | 4 | 0.06 | –1.26 | 0.10 | 4 | −0.66 |
| NLTE | −0.11 | 0.10 | 4 | 0.53 | −0.27 | 0.10 | 4 | 0.09 | 0.62 | 0.10 | 4 | −0.16 | –1.03 | 0.10 | 4 | −0.43 |
| La | −0.52 | 0.13 | 19 | 1.20 | –1.22 | 0.08 | 10 | 0.22 | −0.44 | 0.08 | 14 | −0.14 | – | – | – | – |
| Ce | −0.35 | 0.07 | 35 | 0.89 | −0.75 | 0.06 | 20 | 0.21 | −0.12 | 0.08 | 17 | −0.30 | – | – | – | – |
| Pr | −0.58 | 0.13 | 12 | 1.52 | –1.36 | 0.04 | 4 | 0.46 | −0.89 | 0.18 | 7 | −0.21 | – | – | – | – |
| Nd | −0.11 | 0.08 | 53 | 1.29 | −0.77 | 0.08 | 25 | 0.35 | −0.13 | 0.09 | 24 | −0.15 | – | – | – | – |
| Sm | −0.43 | 0.08 | 35 | 1.43 | –1.08 | 0.13 | 21 | 0.50 | −0.50 | 0.11 | 24 | −0.06 | – | – | – | – |
| Eu | −0.63 | 0.09 | 6 | 1.67 | –1.55 | – | 4 | 0.47 | −0.85 | 0.12 | 6 | 0.03 | –2.00 | – | 2 | 0.26 |
| Gd | −0.33 | 0.11 | 21 | 1.42 | −0.95 | 0.05 | 6 | 0.52 | −0.39 | 0.05 | 7 | −0.06 | – | – | – | – |
| Tb | −1.05 | 0.08 | 3 | 1.47 | – | – | – | – | – | – | – | – | – | – | – | – |
| Dy | −0.16 | 0.10 | 12 | 1.56 | −0.83 | 0.10 | 8 | 0.61 | −0.26 | 0.10 | 8 | 0.04 | – | – | – | – |
| Ho | −0.75 | – | 2 | 1.59 | –1.75 | – | 1 | 0.31 | –1.08 | 0.11 | 2 | −0.16 | – | – | – | – |
| Er | −0.46 | 0.09 | 4 | 1.44 | –1.10 | 0.07 | 4 | 0.52 | −0.49 | 0.03 | 4 | −0.01 | – | – | – | – |
| Tm | −1.23 | 0.21 | 2 | 1.33 | –2.00 | – | 1 | 0.44 | –1.40 | – | 1 | −0.10 | – | – | – | – |
| Hf | −0.80 | 0.07 | 2 | 1.17 | – | – | – | – | −0.75 | – | 1 | −0.20 | – | – | – | – |
| Os | 0.40 | 0.13 | 3 | 1.82 | −0.70 | – | 1 | 0.44 | 0.38 | – | 1 | 0.38 | – | – | – | – |
| Ir | 0.15 | – | 1 | 1.59 | −0.65 | – | 1 | 0.51 | 0.05 | – | 1 | 0.07 | – | – | – | – |
| Th | −1.30 | – | 1 | 1.50 | – | – | – | – | –1.22 | – | 1 | 0.16 | – | – | – | – |
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