Table 2.
Sensitivity of the abundances (Δ log ϵX) with variations in the atmospheric parameters (considering the atmospheric parameters of HD 198269).
| Δ log ϵX |
||||
|---|---|---|---|---|
| Element | ΔTeff | Δ log g | Δξt | Δ [Fe/H] |
| (+100 K) | (+0.5) | (+0.5 | (+0.5 | |
| km s−1) | dex) | |||
| C | 0.04 | 0.06 | −0.03 | −0.05 |
| N | 0.21 | 0.19 | 0.55 | 0.14 |
| O | 0.00 | 0.20 | −0.10 | −0.10 |
| Na | 0.08 | 0.05 | 0.13 | 0.23 |
| Mg | 0.10 | 0.00 | 0.00 | 0.00 |
| Fe | 0.12 | 0.07 | −0.12 | 0.04 |
| Sr | 0.05 | −0.05 | −0.20 | 0.00 |
| Y | 0.01 | 0.16 | 0.04 | −0.08 |
| Zr | 0.00 | 0.07 | −0.10 | −0.03 |
| Ba | 0.00 | 0.10 | 0.05 | 0.00 |
| La | 0.04 | 0.17 | −0.08 | −0.09 |
| Ce | 0.00 | 0.14 | −0.12 | −0.07 |
| Pr | 0.03 | 0.14 | −0.06 | −0.10 |
| Nd | 0.01 | 0.10 | −0.17 | −0.13 |
| Sm | −0.01 | 0.08 | −0.19 | −0.13 |
| Eu | −0.03 | 0.13 | −0.05 | −0.18 |
| Gd | 0.00 | 0.20 | −0.15 | −0.30 |
| Dy | 0.00 | 0.10 | 0.03 | 0.00 |
| Er | 0.00 | 0.10 | −0.25 | −0.05 |
| Hf | 0.05 | 0.15 | −0.15 | −0.18 |
| Os | 0.05 | 0.05 | 0.05 | 0.05 |
| Pb | 0.30 | 0.00 | 0.20 | 0.30 |
Notes. The lines of a few elements could not be detected in HD 198269; we thus used HD 196944 (slightly higher in temperature, but with otherwise similar parameters) to estimate the abundance sensitivity to parameter changes.
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