Table 8.
Abundances of yttrium, magnesium, carbon, and nitrogen we used to calculate the ages.
| Star | [Mg/Fe] (dex) | [Y/Fe] (dex) | [Y/Mg] (dex) | Age(Gyr) | [C/Fe] (dex) | [N/Fe] (dex) | [C/N] (dex) | Age (Gyr) |
|---|---|---|---|---|---|---|---|---|
| HD 218330 | 0.35±0.06 | 0.05±0.08 | –0.30±0.10 | 14.10±2.93 | –0.02±0.09 | 0.42±0.11 | –0.44±0.14 | 3.31±5.23 |
| HD 4313 | 0.42±0.09 | –0.09±0.07 | –0.51±0.11 | 20.02±5.11 | –0.05±0.09 | 0.43±0.11 | –0.48±0.14 | 4.50±7.47 |
| HD 5214 | 0.26±0.06 | 0.05±0.08 | –0.21±0.10 | 12.00±4.76 | –0.08±0.09 | 0.48±0.11 | –0.56±0.14 | 2.02±3.63 |
| HD 6432 | 0.51±0.04 | –0.01±0.08 | –0.50±0.09 | 20.03±4.46 | –0.01±0.09 | 0.47±0.11 | –0.48±0.14 | 3.53±5.76 |
| HD 22045 | 0.32±0.06 | 0.29±0.11 | –0.03±0.13 | 6.98±5.39 | –0.08±0.09 | 0.50±0.11 | –0.58±0.14 | 1.94±3.65 |
| HD 24680 | 0.35±0.06 | 0.34±0.06 | 0.01±0.08 | 5.69±4.76 | –0.03±0.09 | 0.78±0.11 | –0.81±0.14 | 2.75±8.95 |
| HD 76445 | 0.46±0.08 | –0.02±0.12 | –0.48±0.14 | 19.08±5.35 | 0.03±0.09 | 0.50±0.11 | –0.53±0.14 | 2.45±4.11 |
| HD 77776 | 0.29±0.07 | –0.06±0.08 | –0.35±0.11 | 15.37±4.87 | –0.18±0.09 | 0.38±0.11 | –0.53±0.14 | 2.28±3.43 |
| HD 78419 | 0.32±0.11 | 0.11±0.09 | –0.21±0.14 | 11.66±5.69 | –0.04±0.16 | 0.30±0.18 | –0.34±0.24 | 5.80±9.02 |
| 78 Cnc | 0.41±0.06 | –0.13±0.10 | –0.54±0.12 | 20.85±4.81 | 0.24±0.09 | 0.43±0.11 | –0.19±0.14 | 13.51±18.12 |
| HD 99596 | 0.19±0.07 | –0.19±0.08 | –0.38±0.11 | 16.50±4.70 | –0.03±0.09 | 0.38±0.11 | –0.41±0.14 | 4.14±7.20 |
| HD 100872 | 0.53±0.04 | –0.28±0.11 | –0.81±0.12 | 28.21±4.72 | –0.04±0.09 | 0.33±0.11 | –0.37±0.14 | 4.63±6.94 |
| HD 97716 | 0.06±0.10 | –0.18±0.10 | –0.24±0.14 | 12.67±5.32 | –0.13±0.09 | 0.23±0.11 | –0.36±0.14 | 5.69±9.74 |
| HD 97491 | 0.48±0.04 | –0.13±0.08 | –0.61±0.09 | 22.72±4.52 | 0.10±0.09 | 0.16±0.11 | –0.06±0.14 | 18.89±24.00 |
| HD 97197 | 0.22±0.10 | 0.11±0.08 | –0.11±0.13 | 9.18±5.50 | 0.03±0.09 | 0.50±0.11 | –0.47±0.14 | 2.93±5.69 |
| p04 Leo | 0.11±0.04 | –0.21±0.08 | –0.32±0.09 | 14.98±4.54 | –0.12±0.09 | 0.22±0.11 | –0.34±0.14 | 6.16±9.42 |
Notes. The stellar ages based on [Y/Mg] were calculated using the relation from Berger et al. (2022), and the ages from [C/N] were calculated using the relation from Casali et al. (2019). The mean abundance of carbon and nitrogen in the optical and IR region was used to estimate the ages, except for HD 78419 (no IR spectrum).
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