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Table 1

Orbital solutions from Pourbaix et al. (2002) and from this work using HARPS together with some older ESO Coudé Echelle velocities (Endl et al. 2001).

HARPS + ESO
Element Original Coudé Echelle

a (′′) 17.57 ± 0.022 17.66 ± 0.026
i (°) 79.20 ± 0.041 79.32 ± 0.044
ω (°) 231.65 ± 0.076 232.3 ± 0.11
Ω (°) 204.85 ± 0.084 204.75 ± 0.087
e 0.5179 ± 0.00076 0.524 ± 0.0011
P (yr) 79.91 ± 0.011 79.91 ± 0.013
T (Julian year) 1875.66 ± 0.012 1955.66 ± 0.014
V0 (km s-1) −22.445 ± 0.0021 −22.390 ± 0.0042
ϖ (mas) 747.1 ± 1.2 (adopted) 743 ± 1.3
κ 0.4581 ± 0.00098 0.4617 ± 0.00044
ΔVB (m s-1) 0.0 (adopted) 329 ± 9.0
MA (M) 1.105 ± 0.0070 1.133 ± 0.0050
MB (M) 0.934 ± 0.0061 0.972 ± 0.0045

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