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Table 1
Spectroscopic observations and stellar parameters, ages, and Tc slopes of the sample stars.
| Star | Teff | log g | [Fe/H] | Vtur | Age | Tc slope | S/N | Instrument |
| (K) | dex) | (dex) | (km s-1) | (Gyr) | (10-4 dex K-1) | |||
|
|
||||||||
| HD 8828 | 5380 ± 19 | 4.39 ± 0.03 | −0.16 ± 0.01 | 0.72 ± 0.04 | 7.1 ± 3.6 | 0.11 ± 0.33 | 980 | HARPS |
| HD 11271 | 6120 ± 21 | 4.37 ± 0.03 | 0.23 ± 0.02 | 1.24 ± 0.02 | 2.7 ± 0.6 | 0.06 ± 0.27 | 380 | HARPS |
| HD 23079 | 5980 ± 13 | 4.46 ± 0.03 | −0.12 ± 0.01 | 1.10 ± 0.02 | 5.4 ± 0.5 | 0.65 ± 0.30 | 1080 | HARPS |
| HD 44594 | 5860 ± 17 | 4.40 ± 0.02 | 0.17 ± 0.01 | 1.02 ± 0.02 | 2.2 ± 0.7 | 0.50 ± 0.17 | 1170 | HARPS |
| HD 45067 | 6100 ± 44 | 4.16 ± 0.03 | 0.02 ± 0.03 | 1.35 ± 0.06 | 3.9 ± 0.6 | 0.82 ± 0.37 | 390 | UVES |
| HD 59967 | 5820 ± 18 | 4.48 ± 0.03 | −0.05 ± 0.01 | 1.17 ± 0.03 | 1.0 ± 0.7 | 1.29 ± 0.60 | 420 | HARPS |
| HD 69830 | 5390 ± 23 | 4.39 ± 0.04 | −0.05 ± 0.02 | 0.73 ± 0.04 | 9.3 ± 1.6 | 0.57 ± 0.21 | 1560 | HARPS |
| HD 77462 | 6321 ± 35 | 4.38 ± 0.03 | −0.19 ± 0.02 | 1.38 ± 0.05 | 3.9 ± 0.5 | 0.36 ± 0.34 | 510 | HARPS |
| HD 86997 | 6300 ± 33 | 4.29 ± 0.03 | −0.03 ± 0.02 | 1.46 ± 0.05 | 3.2 ± 0.4 | 0.12 ± 0.29 | 440 | HARPS |
| HD 90774 | 6150 ± 28 | 4.25 ± 0.03 | 0.02 ± 0.02 | 1.37 ± 0.03 | 3.5 ± 0.5 | 0.50 ± 0.30 | 400 | HARPS |
| HD 101198 | 6230 ± 21 | 4.27 ± 0.03 | −0.15 ± 0.01 | 1.52 ± 0.03 | 4.3 ± 0.5 | −0.05 ± 0.14 | 2350 | HARPS |
| HD 105665 | 6110 ± 20 | 4.28 ± 0.03 | −0.25 ± 0.02 | 1.36 ± 0.03 | 6.7 ± 0.3 | −0.51 ± 0.42 | 390 | HARPS |
| HD 106200 | 6490 ± 113 | 4.72 ± 0.06 | −0.26 ± 0.07 | 2.45 ± 0.29 | 3.1 ± 1.0 | 0.34 ± 0.61 | 180 | UVES |
| HD 106869 | 6130 ± 17 | 4.34 ± 0.04 | 0.14 ± 0.01 | 1.27 ± 0.02 | 3.1 ± 0.2 | 0.24 ± 0.15 | 430 | HARPS |
| HD 109591 | 5720 ± 16 | 4.29 ± 0.02 | −0.07 ± 0.01 | 0.97 ± 0.03 | 11.0 ± 0.5 | −0.74 ± 0.55 | 410 | HARPS |
| HD 115031 | 5880 ± 15 | 4.26 ± 0.02 | −0.01 ± 0.01 | 1.10 ± 0.02 | 5.3 ± 2.1 | −0.56 ± 0.14 | 780 | HARPS |
| HD 116941 | 6300 ± 37 | 4.36 ± 0.03 | −0.06 ± 0.03 | 1.42 ± 0.05 | 3.1 ± 0.5 | −0.05 ± 0.45 | 390 | HARPS |
| HD 117190 | 6376 ± 35 | 4.65 ± 0.04 | 0.03 ± 0.02 | 1.50 ± 0.05 | 1.1 ± 0.8 | 2.07 ± 0.49 | 350 | HARPS |
| HD 117618 | 5970 ± 18 | 4.37 ± 0.02 | 0.03 ± 0.01 | 1.09 ± 0.02 | 4.9 ± 0.5 | −0.07 ± 0.18 | 630 | HARPS |
| HD 119758 | 5760 ± 52 | 4.42 ± 0.06 | 0.04 ± 0.04 | 1.13 ± 0.08 | 2.8 ± 2.5 | 0.90 ± 0.37 | 340 | UVES |
| HD 122194 | 5840 ± 18 | 4.34 ± 0.02 | 0.09 ± 0.01 | 1.07 ± 0.02 | 2.9 ± 2.4 | −0.13 ± 0.22 | 560 | HARPS |
| HD 122603 | 6080 ± 23 | 4.09 ± 0.03 | 0.09 ± 0.02 | 1.36 ± 0.02 | 3.7 ± 0.5 | 0.41 ± 0.18 | 440 | HARPS |
| HD 128760 | 6160 ± 20 | 4.45 ± 0.03 | 0.17 ± 0.01 | 1.24 ± 0.02 | 2.5 ± 0.7 | −0.02 ± 0.18 | 350 | HARPS |
| HD 129290 | 5970 ± 75 | 4.30 ± 0.19 | 0.03 ± 0.06 | 1.08 ± 0.10 | 4.8 ± 2.2 | 0.72 ± 0.33 | 140 | UVES |
| HD 130265 | 5640 ± 52 | 4.34 ± 0.06 | −0.21 ± 0.04 | 0.76 ± 0.09 | 7.3 ± 3.8 | 0.68 ± 0.42 | 270 | UVES |
| HD 134330 | 5620 ± 23 | 4.46 ± 0.03 | 0.10 ± 0.02 | 0.95 ± 0.04 | 1.5 ± 1.3 | 0.97 ± 0.23 | 420 | HARPS |
| HD 139590 | 6190 ± 20 | 4.42 ± 0.03 | 0.15 ± 0.01 | 1.27 ± 0.03 | 2.6 ± 0.3 | −0.12 ± 0.35 | 400 | HARPS |
| HD 142921 | 5850 ± 14 | 4.30 ± 0.02 | −0.08 ± 0.01 | 1.05 ± 0.02 | 9.0 ± 0.3 | −1.88 ± 0.56 | 380 | HARPS |
| HD 146546 | 6211 ± 24 | 4.37 ± 0.03 | −0.02 ± 0.02 | 1.35 ± 0.03 | 3.7 ± 0.4 | 0.01 ± 0.26 | 360 | HARPS |
| HD 147644 | 6040 ± 18 | 4.38 ± 0.02 | −0.10 ± 0.01 | 1.19 ± 0.02 | 2.1 ± 1.5 | 0.37 ± 0.19 | 360 | HARPS |
| HD 148998 | 6030 ± 17 | 4.21 ± 0.02 | 0.06 ± 0.01 | 1.26 ± 0.02 | 4.4 ± 0.9 | 0.70 ± 0.16 | 320 | HARPS |
| HD 157060 | 6270 ± 25 | 4.39 ± 0.04 | 0.09 ± 0.02 | 1.38 ± 0.03 | 2.7 ± 0.2 | 0.70 ± 0.74 | 470 | HARPS |
| HD 158469 | 6200 ± 19 | 4.40 ± 0.04 | 0.06 ± 0.01 | 1.35 ± 0.02 | 3.2 ± 0.3 | 0.12 ± 0.18 | 640 | HARPS |
| HD 168432 | 6180 ± 26 | 4.36 ± 0.03 | −0.19 ± 0.02 | 1.32 ± 0.03 | 5.5 ± 0.4 | 1.00 ± 0.31 | 410 | HARPS |
| HD 169822 | 5586 ± 51 | 4.48 ± 0.07 | −0.13 ± 0.04 | 0.86 ± 0.09 | 2.1 ± 2.1 | −0.52 ± 0.36 | 460 | HARPS |
| HD 175128 | 6110 ± 22 | 4.31 ± 0.04 | 0.10 ± 0.02 | 1.29 ± 0.03 | 3.4 ± 1.0 | −0.06 ± 0.15 | 330 | HARPS |
| HD 188345 | 6050 ± 19 | 4.23 ± 0.03 | 0.19 ± 0.01 | 1.29 ± 0.02 | 3.5 ± 0.2 | 0.08 ± 0.44 | 330 | HARPS |
| HD 198227 | 6190 ± 22 | 4.30 ± 0.03 | 0.08 ± 0.02 | 1.33 ± 0.03 | 3.2 ± 0.4 | 0.39 ± 0.31 | 270 | HARPS |
| HD 219272 | 6240 ± 39 | 4.45 ± 0.08 | 0.06 ± 0.03 | 1.19 ± 0.05 | 1.7 ± 1.2 | 0.68 ± 0.52 | 250 | UVES |
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