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Table 1.
Robust regression fits of Ra/R as a function of [α/Fe], according to the evolutionary phase and the stellar mass.
| Intercept | Slope | |
|---|---|---|
| RGB, M < 1.7 M⊙ | 1.030 ± 0.002 | −0.111 ± 0.012 |
| RGB, M > 1.7 M⊙ | 0.979 ± 0.018 | −0.967 ± 0.121 |
| RC, M < 1.7 M⊙ | 1.037 ± 0.003 | −0.174 ± 0.024 |
| RC, M > 1.7 M⊙ | 0.993 ± 0.008 | −1.517 ± 0.084 |
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