Table 4
Stellar parameters of target stars.
| Parameters | HD 14651 | HD 16702 | HD 22781 | HD 30246 | |
|
|
|||||
| Effective temperature [K] | 5491 ± 26 | 5908 ± 25 | 5027 ± 50 | 5833 ± 44 | |
| vsinI [km s-1]a | 3.07 | 2.56 | 1.73 | 4.96 | |
| [Fe/H] | −0.04 ± 0.06 | −0.12 ± 0.06 | −0.37 ± 0.12 | 0.17 ± 0.10 | |
| log g | 4.45 ± 0.03 | 4.46 ± 0.03 | 4.60 ± 0.02 | 4.39 ± 0.04 | |
| Ms [M⊙]b | 0.96 ± 0.03 | 0.98 ± 0.04 | 0.75 ± 0.03 | 1.05 ± 0.04 | |
| Age [Gyr] | [0.2−6.6] | [0.1−4.6] | [0.6−8.9] | [0.2−3.7] | |
| AgeRHK′ [Gyr]c | >5.0 | [0.6−1.1] | > 4.6 | [0.4−0.9] | |
|
−5.02 ± 0.11 | −4.54 ± 0.05 | −5.02 ± 0.14 | −4.50 ± 0.06 | |
|
|
|||||
| Parameters | HD 92320 | HD 137510 | HD 156279 | HD 167215 | |
|
|
|||||
| Effective temperature [K] | 5664 ± 24 | 6131 ± 50 | 5453 ± 40 | 6351 ± 68 | |
| vsinI [km s-1]a | 3.13 | 7.42 | 2.51 | 4.94 | |
| [Fe/H] | −0.10 ± 0.06 | 0.38 ± 0.13 | 0.14 ± 0.01 | −0.21 ± 0.14 | |
| log g | 4.48 ± 0.03 | 4.02 ± 0.04 | 4.46 ± 0.03 | 4.19 ± 0.07 | |
| Ms [M⊙]b | 0.92 ± 0.04 | 1.36 ± 0.04 | 0.93 ± 0.04 | 1.15 ± 0.07 | |
| Age [Gyr] | [0.2−6.6] | [2.3−3.0] | [0.4−7.7] | [2.0−5.2] | |
| AgeRHK′ [Gyr]c | [2.2−4.7] | >5.4 | > 5.4 | >8.0 | |
|
|
−4.80 ± 0.08 | −5.09 ± 0.18 | −5.01 ± 0.06 | −5.25 ± 0.19 | |
Notes.
Estimated from CCF as described in Sect. 3.1. Uncertainty is estimated to about 1 km s-1 in vsinI (see also Boisse et al. 2010).
Formal errors of the isochrone fit are reported. A more realistic 10% was used for the rest of the analysis.
Age estimated from the age-activity relation by Mamajek & Hillenbrand (2008).
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