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Table 1
Best-fitting αCMA.
| HD | Teff (K) | θ LD | Ref. | log g a | [Fe/H]a |  (K) |
The best αCM |  (d.o.f) |
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| Hα | Hβ | Hγ | Hα | Hβ | Hγ | |||||||
|
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| Interferometric and IRFM | ||||||||||||
|
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| Sun | 5780 ± 40 | – | 4.44 | 0.00 | 5780 | 2.0 | ≥1.0 | ≥1.0 | 6.05 (244) | – | – | |
| Procyon | 6530 ± 50 | 5.448±0.053 | Kervella et al. (2004) | 3.98 | −0.05 | 6524 | 1.9 | ≥1.0 | ≥1.0 | 0.94 (309) | – | – |
| 10700 | 5380 ± 50 | 2.078±0.031 | Di Folco et al. (2004) | 4.53 | −0.49 | 5330 | 1.8 | ≥1.0 | ≥1.0 | 0.72 (195) | – | – |
| 103095 | 4820 ± 100 | 0.679±0.015 | Creevey et al. (2012) | 4.59 | −1.30 | 5100 | 2.4 | 1.9 | ≥0.5 | 4.22 (648) | 1.84 (217) | |
| 39587 | 5960 ± 50 | 1.051±0.009 | Boyajian et al. (2012) | 4.48 | −0.07 | 5960 | 1.9 | ≥1.0 | ≥0.5 | 1.11 (187) | – | – |
| 6582 | 5260 ± 85 | 0.972±0.009 | Boyajian et al. (2012) | 4.51 | −0.83 | 5370 | 1.7 | ≥0.5 | – | 0.58 (112) | – | – |
| 217014 | 5800 ± 55 | 0.748±0.027 | Baines et al. (2008) | 4.28 | +0.20 | 5780 | 2.0 | ≥1.0 | ≥1.0 | 1.08 (236) | – | – |
| 22049 | 5120 ± 75 | 2.148±0.029 | Di Folco et al. (2004) | 4.61 | −0.09 | 5045 | 2.2 | ≥1.0 | – | 0.83 (252) | – | – |
| 140283 | 5780 ± 50 | – | Casagrande et al. (2010) | 3.70 | −2.38 | 5780 | 1.7 | 1.0 | 1.0 | 1.00 (201) | 0.60 (547) | 1.13 (264) |
| 122563 | 4600 ± 50 | 0.948±0.012 | Creevey et al. (2012) | 1.60 | −2.60 | 4600 | 1.0 | 0.5 | 0.5 | 0.46 (533) | 2.50 (236) | 2.43 (80) |
| 45282 | 5300 ± 50 | – | Casagrande et al. (2010) | 3.07 | −1.50 | 5310 | 1.0 | 0.5 | – | 0.96 (574) | 0.71 (124) | – |
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| Spectroscopic | ||||||||||||
|
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| Procyon | 6530 | – | This work | 3.96 | −0.05 | 6530 | 1.9 | ≥1.0 | ≥1.0 | – | 0.99 (309) | – |
| 103095 | 5110 | – | Fuhrmann (1998) | 4.66 | −1.35 | 5110 | 2.4 | 1.9 | ≥0.5 | – | 1.05 (648) | 1.07 (217) |
| 39587 | 5920 | – | Fuhrmann (2004) | 4.39 | −0.07 | 5920 | 1.5 | ≥0.5 | ≥0.5 | – | 0.96 (187) | – |
| 6582 | 5390 | – | Fuhrmann (2004) | 4.45 | −0.83 | 5390 | 2.3 | ≥1.0 | – | 0.72 (112) | – | – |
| 217014 | 5790 | – | Fuhrmann (1998) | 4.33 | +0.20 | 5790 | 2.0 | ≥1.0 | ≥1.0 | 0.93 (236) | – | – |
| 22049 | 5050 | – | Fuhrmann (2004) | 4.54 | −0.09 | 5050 | 2.2 | ≥1.0 | – | 0.80 (252) | – | – |
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