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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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