Table 8
[El/Fe] ratios of our stars are compared with the literature for HE 1523–0901, HD 6268, and HD 195636.
| HE 1523–0901 | HD 6268 | HD 195636 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| El | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| C | – | −0.82 | 0.39(b) | – | – | −0.62 | – | −0.68 | −0.91 | −0.84 | – | – | – | – | −0.76 | – |
| N | – | – | – | – | – | 0.78 | – | – | 0.80 | 0.91 | – | – | – | – | – | – |
| O | – | – | – | – | – | 0.78 | 0.73 | – | 0.66 | 0.90 | 1.00 | – | – | – | 1.23 | 1.13 |
| Na | 0.135 | – | – | −0.035 | 3.342 | 0.18 | −0.32 | 0.22 | – | 0.45 | −0.27 | 0.57 | −0.14 | −0.38 | 0.59 | 0.04 |
| Mg | 0.33 | – | 0.47 | 0.156 | – | 0.36 | 0.36 | 0.44 | 0.56 | 0.32 | 0.38 | 0.28 | 0.82 | – | 0.58 | 0.64 |
| Al | – | – | – | −1.155 | 2.98 | −0.63 | −0.47 | 0.48 | −0.36 | −0.86 | −0.64 | −0.90 | – | – | −0.66 | 0.02 |
| S | – | – | – | – | – | – | – | 0.50 | – | 0.32 | – | 0.32 | – | – | – | – |
| Si | 0.42 | – | – | 0.032 | – | 0.49 | – | – | – | 0.21 | – | – | – | – | 0.47 | – |
| K | – | – | 0.39 | – | – | 0.47 | 0.30 | – | – | 0.45 | 0.31 | – | 1.35 | 1.04 | 0.50 | 0.56 |
| Ca | 0.29 | – | 0.26 | 0.237 | – | 0.26 | – | 0.44 | 0.45 | 0.30 | – | 0.32 | 0.63 | – | 0.54 | – |
| Sc | −0.03 | – | 0.27 | −0.243 | – | −0.33 | – | 0.07 | −0.07 | −0.26 | – | 0.45 | 0.69 | – | 0.0 | – |
| Ti I | 0.16 | – | 0.25 | 0.314 | – | 0.22 | – | 0.29 | 0.12 | 0.29 | – | 0.76 | – | – | 0.49 | – |
| Ti II | – | – | 0.32 | 0.273 | – | – | – | 0.29 | 0.28 | 0.33 | – | – | – | – | 0.40 | – |
| V | – | – | −0.12 | – | – | – | – | −0.09 | – | – | – | – | – | – | – | – |
| Cr | −0.14 | – | 0.01 | −0.333 | – | −0.15 | – | −0.08 | −0.25 | −0.14 | – | – | – | – | −0.15 | – |
| Mn | – | – | −0.32 | – | – | −1.01 | −0.51 | −0.22 | −0.49 | −1.09 | −0.59 | 0.10 | – | – | −0.85 | −0.35 |
| Co | 0.34 | – | 0.41 | – | – | −0.17 | – | 0.02 | −0.26 | −0.30 | – | – | – | – | −0.03 | – |
| Ni | 0.03 | – | 0.09 | 0.225 | – | 0.15 | – | 0.04 | 0.08 | 0.06 | – | – | – | – | 0.25 | – |
| Cu | – | – | – | – | – | – | – | – | −0.56 | – | −0.35 | – | – | – | – | – |
| Zn | 0.21 | – | 0.35 | – | – | 0.14 | – | – | 0.32 | 0.13 | – | – | – | – | 0.32 | – |
| Sr | – | 0.90 | 0.57 | 0.395 | – | 0.40 | 0.34 | −0.14 | 0.15 | 0.15 | 0.11 | 0.39 | – | – | −0.21 | −0.19 |
| Y | – | – | 0.50 | 0.335 | – | 0.34 | – | – | −0.41 | −0.21 | – | – | – | – | – | – |
| Zr | – | – | 0.95 | – | – | 0.58 | – | 0.17 | 0.07 | 0.25 | – | – | – | – | – | – |
| Mo | – | – | – | – | – | 0.72 | – | – | 0.08 | – | – | – | – | – | – | – |
| Ru | – | – | – | – | – | 1.02 | – | – | – | – | – | – | – | – | – | – |
| Cd | – | – | – | – | – | – | – | – | – | 0.36 | 0.09 | – | – | – | – | – |
| Ba | – | 0.69 | 1.27 | 0.969 | – | 0.83 | 0.53 | 0.13 | 0.05 | – | – | – | −0.14 | – | −0.66 | −0.43 |
| La | – | – | 1.44 | 1.20 | – | 1.20 | – | −0.03 | 0.09 | 0.22 | – | – | – | – | – | – |
| Ce | – | – | 1.26 | – | – | 0.89 | – | 0.34 | −0.02 | 0.21 | – | – | – | – | – | – |
| Pr | – | – | 1.64 | – | – | 1.52 | – | – | 0.30 | 0.46 | – | – | – | – | – | – |
| Nd | – | – | 1.56 | – | – | 1.29 | – | 0.57 | 0.17 | 0.35 | – | – | – | – | – | – |
| Sm | – | – | 1.74 | – | – | 1.43 | – | – | 0.25 | 0.50 | – | – | – | – | – | – |
| Eu | – | 1.70 | 1.82 | 1.90 | – | 1.67 | – | 0.68 | 0.31 | 0.47 | – | – | – | – | 0.26 | – |
| Gd | – | – | – | – | – | 1.42 | – | 0.85 | 0.40 | 0.52 | – | – | – | – | – | – |
| Tb | – | – | – | – | – | 1.47 | – | – | – | – | – | – | – | – | – | – |
| Dy | – | – | 2.47 | – | – | 1.56 | – | 1.12 | 0.49 | 0.61 | – | – | – | – | – | – |
| Ho | – | – | – | – | – | 1.59 | – | – | – | 0.31 | – | – | – | – | – | – |
| Er | – | – | – | – | – | 1.44 | – | – | 0.32 | 0.52 | – | – | – | – | – | – |
| Tm | – | – | – | – | – | 1.33 | – | – | 0.28 | 0.44 | – | – | – | – | – | – |
| Yb | – | – | – | – | – | – | – | – | 0.41 | – | – | – | – | – | – | – |
| Hf | – | – | – | – | – | 1.17 | – | – | 0.41 | – | – | – | – | – | – | – |
| Os | 1.73(a) | – | 1.97 | – | – | 1.82 | – | – | – | 0.44 | – | – | – | – | – | – |
| Ir | 1.81(a) | – | – | – | – | 1.59 | – | – | – | 0.51 | – | – | – | – | – | – |
| Th | 1.73(a) | – | – | – | – | 1.50 | – | – | 0.41 | – | – | – | – | – | – | – |
| U | 1.43(a) | – | – | – | – | 1.41 | – | – | – | – | – | – | – | – | – | – |
Notes. The first column (1) gives the values calculated by Frebel et al. (2007, 2013), (2) – Hansen et al. (2018), (3) – Sakari et al. (2018), (4, 5) – Reggiani et al. (2022; LTE and NLTE, respectively), (8) – McWilliam et al. (1995), (9) – Roederer et al. (2014), (12) – Gratton & Sneden (1988), (13, 14) – Zhang & Zhao (2005; LTE and NLTE, respectively), (6 and 7; 10 and 11; 15 and 16) – our determinations (LTE and NLTE, respectively). The values labeled with (a) are by Frebel et al. (2007) (1) and with (b) we refer to Sakari et al. (2018) (3) but recalculated for changes due to stellar evolution.
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