Table 5.
Best linear fits to the [El/Fe I]−age distributions in dex Gyr−1 and the Pearson correlation coefficients for the thin disc stars and comparison with other works.
| El. | Present work | Battistini & Bensby (2016) | Spina et al. (2018) | Magrini et al. (2018) | |||
|---|---|---|---|---|---|---|---|
| thin disc |
thin disc |
solar twins | age < 8 Gyr |
||||
| Slope | PCC | Slope ( * ) | PCC ( * ) | Slope | Slope ( * *) | PCC ( * *) | |
| Sr | −0.011 ± 0.003 | −0.22 | −0.023 ± 0.009 | −0.40 | −0.032 ± 0.002 | ||
| Y | −0.015 ± 0.002 | −0.30 | −0.011 ± 0.002 | −0.35 | −0.029 ± 0.002 | −0.023 ± 0.009 | −0.6 |
| Zr | −0.004 ± 0.003 | −0.07 | −0.003 ± 0.006 | +0.11 | −0.026 ± 0.002 | −0.038 ± 0.013 | −0.5 |
| Ba | −0.010 ± 0.003 | −0.19 | −0.023 ± 0.003 | −0.43 | −0.032 ± 0.002 | −0.027 ± 0.007 | −0.8 |
| La | −0.002 ± 0.003 | −0.03 | +0.004 ± 0.005 | +0.09 | −0.023 ± 0.002 | −0.005 ± 0.015 | −0.2 |
| Ce | +0.001 ± 0.003 | +0.04 | −0.009 ± 0.005 | −0.18 | −0.024 ± 0.002 | −0.016 ± 0.010 | −0.5 |
| Pr | +0.008 ± 0.004 | +0.13 | −0.014 ± 0.003 | ||||
| Nd | −0.000 ± 0.003 | −0.01 | +0.006 ± 0.004 | +0.14 | −0.023 ± 0.002 | ||
| Sm | +0.014 ± 0.006 | +0.19 | +0.010 ± 0.006 | +0.22 | −0.008 ± 0.002 | ||
| Eu | +0.011 ± 0.003 | +0.22 | +0.011 ± 0.004 | +0.24 | −0.007 ± 0.002 | ||
Notes. ( * )Computed in this work for the potential thin-disc stars with age uncertainties better than 3 Gyr from data by Bensby et al. (2014) and Battistini & Bensby (2016). ( * *)The slope was calculated including open clusters.
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