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Table 5

Fundamental parameters of α Cen A and B.

Parameter Value Ref.

α Cen AB
Parallax 717.17 ± 0.61 mas K16a
Distance 1.3384 ± 0.0011 pc K16a
4.1298 ± 0.0034 × 1016 m K16a

α Cen A
Mass 1.1055 ± 0.0039 M K16a
2.1983 ± 0.0078 × 1030 kg
Radius 1.2234 ± 0.0053 R K16a, K16b
8.511 ± 0.037 × 108 m
Luminosity 1.521 ± 0.015 L B13, K16a
5.821 ± 0.058 × 1026 W
Teff 5795 ± 19 K B13, K16b
log g [cgs] 4.3117 ± 0.0015 K16a, K16b

α Cen B
Mass 0.9373 ± 0.0033 M K16a
1.8638 ± 0.0066 × 1030 kg
Radius 0.8632 ± 0.0037 R K16a, K16b
6.006 ± 0.026 × 108 m
Luminosity 0.503 ± 0.007 L B13, K16a
1.925 ± 0.026 × 1026 W
Teff 5231 ± 21 K B13, K16b
log g [cgs] 4.5431 ± 0.0015 K16a, K16b

Reference. B13: Boyajian et al. (2013), K16a: Kervella et al. (2016), K16b: present work.

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