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Table 2

Orbital parameters for the companions.

Parameter HD 40956 b HD 111591 b HD 113996 b

P (days) 578.6 ± 3.3 1056.4 ± 14.3 610.2 ± 3.8
K (m s-1) 68 ± 2 59 ± 3 120 ± 9
Tperiastron (JD) 2 455 341.88 ± 11.07 2 455 602.40 ± 30.85 2 453 309.94 ± 23.67
e 0.24 ± 0.05 0.26 ± 0.10 0.28 ± 0.12
ω (deg) 338.62 ± 7.74 78.72 ± 11.94 92.06 ± 17.25
m sin i (MJ) 2.7 ± 0.6 4.4 ± 0.4 6.3 ± 1.0
a (AU) 1.4 ± 0.1 2.5 ± 0.1 1.6 ± 0.1
Slope (m s-1 yr-1) –13 × 10-2
N obs 54 44 62
rms (m s-1) (BOAO) 23.6 19.5 39.3
rms (m s-1) (OAO) 16.1 9.9

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