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Table 2.
Selection criteria applied to build the different sub-samples of giants from the GALAH catalog.
| Criterion | Main | exαFe | y-exαFe | Additional | Add-exαFe | Add-y-exαFe |
|---|---|---|---|---|---|---|
| log g | < 3.8 | < 3.8 | < 3.8 | < 3.8 | < 3.8 | < 3.8 |
| Teff | 3000÷5500 | 3000÷5500 | 3000÷5500 | 3000÷5500 | 3000÷5500 | 3000÷5500 |
| [Fe/H] | −1.1÷0.4 dex | −1.1÷0.4 dex | −1.1÷0.4 dex | −1.1÷0.4 dex | −1.1÷0.4 dex | −1.1÷0.4 dex |
| [α/Fe] | −0.15÷0.7 dex | Top 1% of main | Top 1% of main | −0.15÷0.7 dex | Top 1% of add | Top 1% of add |
| σ[α/Fe] | ≤0.05 dex | ≤0.05 dex | ≤0.05 dex | ≤0.05 dex | ≤0.05 dex | ≤0.05 dex |
| Age | 0.5÷13 Gyr | 0.5÷13 Gyr | 0.5÷3 Gyr | 0.5÷3 Gyr | 0.5÷3 Gyr | 0.5÷3 Gyr |
| σage/age | ≤30% | ≤30% | ≤30% | > 30% | > 30% | > 30% |
| S/N | ≥30 | ≥30 | ≥30 | ≥30 | ≥30 | ≥30 |
| flag_sp | + | + | + | + | + | + |
| flag_fe_h | + | + | + | + | + | + |
| flag_alpha_fe | + | + | + | + | + | + |
| Total number | 23 072 | 235 | 107 | 83 213 | 990 | 93 |
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