Open Access
Table 6
Age intervals for stars in our sample from different indicators together with the final adopted intervals.
| System age (Gyr) | GJ 504 | HD 3651 | HD 46588 | HD 203030 | HN Peg | HD 118865 |
|---|---|---|---|---|---|---|
| Isochrones |  |
 |
 |
 |
 |
 |
| Gyrochronology | 0.12–0.55 (Pleiades–M37) | ≥2.5 (≥Ruprecht 147) | 0.8–2.5 (NGC 6811–Ruprecht 147) | 0.35–0.55 (M37) | 0.35–0.65 (M37–Praesepe) | 0.60–1.2 (Praesepe–NGC 6811) |
| Lithium EW | 0.20–0.65 (M34–Prasepe) | ≥0.20 (≥M34) | 0.6–4.0 (Praesepe–M67) | 0.60–0.65 (Praesepe) | 0.20–0.65 (M34–Praesepe) | 0.6–4.0 (Praesepe–M67) |
| X-ray luminosity | ≤0.65 (≤Praesepe) | ≥0.60 (≥Praesepe) | ≥0.60 (≥Praesepe) | 0.60–0.65 (Praesepe) | ≤0.65 (≤Praesepe) | – (–) |
| Membership to YMGs | No | No | No | No | No | No |
| Final age | 0.20–0.55 (M34–M37) | 2.5–10.0 (≥Ruprecht 147) | 0.8–2.5 (NGC 6811–Ruprecht 147) | 0.35–0.65 (M37–Praesepe) | 0.35–0.65 (M37–Praesepe) | 0.6–1.2 (Praesepe–NGC 6811) |
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