Table 2.
Target stars chemical abundances.
| Element | #67 | #99 | #100 | #107 | <[X/Y]> ± σ | A(X)⊙ |
|---|---|---|---|---|---|---|
| [FeI/H] | −0.89 (0.01/56) | −0.82 (0.03/42) | −0.84 (0.03/51) | −1.01 (0.01/63) | −0.89 ± 0.08 | 7.50 |
| [FeII/H] | −0.85 (0.05/5) | −0.74 (0.05/4) | −0.43 (0.08/5) | −1.04 (0.03/5) | −0.88 ± 0.15 | 7.50 |
| [Na/Fe] | 0.12 (−/1) | 0.17 (0.01/2) | 0.29 (−/1) | 0.16 (0.02/2) | 0.18 ± 0.07 | 6.37 |
| [Mg/Fe] | 0.13 (−/1 s) | – | – | 0.43 (−/1 s) | 0.28 ± 0.21 | 7.54 |
| [Si/Fe] | 0.38 (0.06/2) | 0.47 (0.07/2) | 0.42 (0.01/2) | 0.38 (0.05/4) | 0.41 ± 0.04 | 7.61 |
| [Ca/Fe] | 0.37 (0.03/4) | 0.36 (0.08/4) | 0.27 (0.11/4) | 0.36 (0.02/5) | 0.34 ± 0.05 | 6.39 |
| [Ti/Fe] | 0.32 (0.02/5) | 0.29 (0.05/3) | 0.21 (−/1) | 0.38 (0.03/8) | 0.30 ± 0.07 | 4.94 |
| [V/Fe] | 0.07 (−/1 s) | – | – | 0.22 (−/1 s) | 0.14 ± 0.11 | 4.00 |
| [Cr/Fe] | 0.20 (−/1) | – | 0.02 (−/1) | 0.10 (−/1) | 0.11 ± 0.09 | 5.63 |
| [Ni/Fe] | 0.05 (0.02/10) | 0.03 (0.08/5) | −0.04 (0.09/6) | 0.02 (0.02/8) | 0.01 ± 0.04 | 6.26 |
| [Mn/Fe] | – | – | – | −0.22 (−/1 s) | 5.37 | |
| [Y/Fe]509 nm | – | – | – | −0.08 (−/1 s) | 2.25 | |
| [Y/Fe]540 nm | – | – | – | 0.19 (−/1 s) | 2.25 | |
| [Ba/Fe] | 0.01 (−/1 s) | −0.06 (−/1 s) | 0.11 (−/1 s) | 0.07 (−/1 s) | 0.03 ± 0.07 | 2.34 |
| [Eu/Fe] | – | – | – | 0.49 (−/1 s) | 0.52 |
Notes. The penultimate column lists average abundances and Gaussian dispersions. The adopted solar abundances are given in the last column. Numbers in parentheses indicate the error of the mean and the number of lines used. An “s” character after the second number in parentheses is used to indicate a measure performed through spectrosynthesis. Star #100 was excluded from the computation of the mean iron abundance and dispersion from Fe II lines.
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