Table 10
Best ten 3D relations.
| Formula | R2 | S.D. | Mean | RI | RI | RI | a | b | c | d | Δa | Δb | Δc | Δd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| rel | Teff | [Fe/H] | X | |||||||||||
| Gyr | Gy | Gy K−1 | Gy dex−1 | Gy dex−1 | Gy | Gy K−1 | Gy dex−1 | Gy dex−1 | ||||||
| Teff+ [Fe/H]+ [Y/Zn] | 0.89 | 1.39 | 0.45 | 0.21 | 0.38 | 0.41 | 31.11 | −4.4(−3) | −6.62 | −13.93 | 2.38 | 4(−4) | 0.28 | 0.90 |
| Teff+ [Fe/H]+ [Y/TiII] | 0.89 | 1.45 | 0.53 | 0.23 | 0.29 | 0.48 | 35.41 | −5.3(−3) | −3.71 | −15.88 | 2.25 | 4(−4) | 0.41 | 1.05 |
| Teff+ [Fe/H]+ [Y/Ti] | 0.89 | 1.39 | 0.45 | 0.25 | 0.29 | 0.46 | 39.50 | −6.0(−3) | −3.85 | −15.90 | 2.13 | 3(−4) | 0.41 | 1.08 |
| Teff+ [Fe/H]+ [Y/Mg] | 0.88 | 1.47 | 0.51 | 0.23 | 0.30 | 0.47 | 36.20 | −5.4(−3) | −4.41 | −13.05 | 2.28 | 4(−4) | 0.39 | 0.91 |
| Teff+ [Fe/H]+ [Sr/Ti] | 0.88 | 1.59 | 0.40 | 0.20 | 0.33 | 0.47 | 23.84 | −3.4(−3) | −5.53 | −15.33 | 2.97 | 5(−4) | 0.35 | 1.12 |
| Teff+ [Fe/H]+ [Sr/TiII] | 0.88 | 1.42 | 0.28 | 0.20 | 0.34 | 0.46 | 22.13 | −3.1(−3) | −5.60 | −14.34 | 3.14 | 4(−4) | 0.35 | 1.08 |
| Teff+ [Fe/H]+ [Sr/Mg] | 0.88 | 1.09 | 0.40 | 0.20 | 0.35 | 0.45 | 24.16 | −3.4(−3) | −5.86 | −12.34 | 3.02 | 5(−4) | 0.34 | 0.93 |
| Teff+ [Fe/H]+ [Y/Si] | 0.87 | 1.27 | 0.35 | 0.28 | 0.32 | 0.39 | 44.73 | −6.8(−3) | −5.25 | −14.61 | 2.11 | 3(−4) | 0.38 | 1.14 |
| Teff+ [Fe/H]+ [Sr/Si] | 0.87 | 1.43 | 0.41 | 0.22 | 0.40 | 0.39 | 31.13 | −4.6(−3) | −6.83 | −13.55 | 2.87 | 5(−4) | 0.32 | 1.16 |
| Teff+ [Fe/H]+ [Y/Al] | 0.85 | 1.67 | 0.49 | 0.22 | 0.46 | 0.32 | 31.4 | −4.5(−3) | −7.4 | −7.7 | 2.2 | 4(−4) | 0.3 | 0.7 |
Notes. Formula are the independent variables used for estimating the stellar age. “Rel imp Teff or [Fe/H] or Z” is the relative importance of the variable Teff or [Fe/H] or X in the regression. The rest are the linear regression coefficients and their uncertainties. In column “b”, the form X(Y) represents X × 10Y.
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