Table 4
LTE abundance ratios and adopted NLTE corrections for our two RR Lyr stars.
| Abundance | CS 22881-039 | σ | N | ΔNLTE | CS 30317-056 | σ | N | |
|
|
||||||||
| log ϵ (Li) | ~0.6 | ul | 1 | – | ~1.0 | ul | 1 | |
| [C/Fe] | 0.69 | ul | – | – | 0.79 | ul | – | |
| [O/Fe] | – | – | – | −0.1 | 0.9 | 0.24 | 1 | |
| [Na/Fe] | −0.13 | 0.15 | 2 | −0.2/ − 0.1 | – | 0.13 | 2 | |
| [Mg/Fe] | 0.70 | 0.30 | 6 | ~0.05 | 0.48 | 0.15 | 6 | |
| [Al/Fe] | −0.74 | 0.05 | 2 | +0.7 | −0.66 | 0.15 | 2 | |
| [Si/Fe] | 0.01 | 0.05 | 1 | −0.05 | 0.05 | 0.05 | 1 | |
| [S/Fe] | – | – | – | −0.4 | 0.78 | 0.07 | 1 | |
| [Ca/Fe] | 0.29 | 0.30 | 5 | ~0.19 | 0.4 | 0.13 | 6 | |
| [ScII/Fe II] | 0.11 | 0.06 | 3 | – | 0.14 | 0.06 | 3 | |
| [TiI/Fe I] | 0.38 | 0.25 | 1 | – | 0.63 | 0.16 | 6 | |
| [TiII/Fe II] | 0.35 | 0.25 | 17 | – | 0.55 | 0.12 | 27 | |
| [Cr/Fe] | −0.32 | 0.12 | 4 | +0.4 | −0.18 | 0.05 | 5 | |
| [Mn/Fe] | −0.59 | 0.05 | 2 | +0.6 | −0.63 | 0.05 | 3 | |
| [Co/Fe] | 0.14 | 0.14 | 2 | ~+0.6 | 0.27 | 0.06 | 2 | |
| [Ni/Fe] | −0.19 | 0.07 | 2 | – | −0.13 | 0.05 | 3 | |
| [SrII/Fe II] | 0.00 | 0.15 | 1 | +0.6 | 0.03 | 0.10 | 2 | |
| [BaII/Fe II] | −0.62 | 0.09 | 1 | ~+0.15 | −0.32 | 0.05 | 2 | |
Notes. σ is the standard deviation and N the number of individual lines. “ul” indicates an upper limit, “*” a value derived from a turbospectrum fit, and a ~ that the ΔNLTE value is a rough estimate or only valid for some lines.
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