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Table 2.

Orbital parameters and dynamical mass of HD 72946B.

Parameter Unit Median ± 1σ Best fit
4cFitted parameters

Semi-major axis a mas 249.1 250.4
cos ω 0.231 0.230
sin ω 0.662 0.663
Inclination i ° 59.3 59.6
PA of asc. node Ω ° −12.0 −11.8
Time periastron T0 BJD 2455956.7 2455955.1
RV semi-ampl. κA m s−1 778.7 774.1
Syst. velocity γ m s−1 −203.2 −207.4
Parallax π mas 38.65 ± 0.12 38.66
SMA primary a1 mas 16.28 16.12
RV offset ZPSOPHIE m s−1 90.6 96.2
RV jitter σELODIE m s−1 24.4 22.9
RV jitter σSOPHIE m s−1 16.1 12.67

Computed parameters

M1 M 0.99 ± 0.03 1.01
M2 MJ 72.4 ± 1.6 72.5
Mass ratio M2/M1 0.070 ± 0.002 0.069
Period P yr 15.91 15.90
Semi-major axis a au 6.45 6.48
Eccentricity e 0.493 0.493
Arg. periastron ω ° 250.7 ± 1.7 250.9

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