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Table 6.
Orbital parameters and hyperparameters.
| Parameter | Description | Prior | Value |
|---|---|---|---|
| KAB (m s−1) | Binary RV semi-amplitude | 𝒩(1699.94, 3.32) | 1711 ± 3 |
| PAB (d) | Binary orbital period | 𝒩(20731.68, 58.36) |
 |
| T0, AB (JD−2400000) | Time of inferior conjunction for binary orbit | 𝒩(48435.04, 0.67) |
 |
| eAB | Eccentricity of binary orbit | 𝒩(0.3605, 0.0026) | 0.333 ± 0.002 |
| ωAB (°) | Argument of periastron of binary orbit | 𝒩(158.90, 0.2) |
 |
| KAb (m s−1) | Planetary RV semi-amplitude | 𝒩(26.40, 1.30) | 25.6 ± 1.3 |
| PAb (d) | Planetary orbital period | 𝒩(901.46, 2.84) | 913 ± 3 |
| T0, Ab (JD−2400000) | Time of inferior conjunction for planetary orbit | 𝒩(53107.63, 28.19) |
 |
| eAb | Eccentricity of planetary orbit | 𝒩(0.0856, 0.075) |
 |
| ωAb (°) | Argument of periastron for planetary orbit | 𝒩(55.37, 6.7) |
 |
| P (d) | Period of 1 yr signal | ℱ(365.25) | – |
| log10t (log10JD) | Phase of 1 yr signal | 𝒰(3, 7) | 5.0681 ± 0.0013 |
| K (m s−1) | Amplitude of 1 yr signal | 𝒰(5, 50) |
 |
| Γ1 (m s−1) | Velocity offset Tenerife 1 | 𝒰(25059, 33259) | 28 708 ± 6 |
| Γ2 (m s−1) | Velocity offset Tenerife 2 | 𝒰(25059, 33259) |
 |
| Γ3 (m s−1) | Velocity offset Delingha | 𝒰(−1300, 0) | −874 ± 6 |
| lnS1 (ln m2 s−2) | Amplitude | 𝒰(−5, 5) | −3.48 ± 0.05 |
| lnω1 (ln d−1) | Angular frequency | 𝒰(0, 8) | 4.654 ± 0.005 |
| lnQ1 | Quality factor | 𝒰(−2, 5) |
 |
| lnS2 (ln m2 s2) | Amplitude | ℱ(−1.0) | – |
| lnω2 (ln d−1) | Angular frequency | 𝒰(0, 8) |
 |
| lnQ2 | Quality factor |
 |
– |
| lnσ (ln m s−1) | Jitter term | ℱ(−9.4) | – |
Notes. Orbital and GP hyperparameters in our MCMC analysis. The priors are denoted by 𝒩(μ, σ) for a Gaussian prior with mean, μ, and width, σ, 𝒰(a, b) for a uniform prior in the interval from a to b, and ℱ(c) for a parameter with a fixed value of c.
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