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Table 7
Groups of chemical elements and uncertainties in the mean abundance ratios ⟨ [X/Fe] ⟩ .
| Nucleosynthetic group | HD 146233 | HD 26491 | |||
| σ est | σ disp | σ est | σ disp | ||
|
|
|||||
| Light metals | Mg, Si | 0.03 | 0.02 | 0.04 | 0.03 |
| Light metals | Ca, Sc, Ti | 0.03 | 0.04 | 0.05 | 0.01 |
| Iron peak | V, Cr, Co, Ni | 0.03 | 0.04 | 0.02 | 0.03 |
| Iron peak | Mn, Cu | 0.03 | 0.01 | 0.05 | 0.02 |
| Light s-process | Sr, Y, Zr | 0.04 | 0.09 | 0.05 | 0.01 |
| Heavy s-process | Ba, Ce, Nd | 0.06 | 0.06 | 0.06 | 0.07 |
Notes. The estimated errors are compared to the dispersions around the mean. For each group, the larger value of each observation run was adopted.
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