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Table 2
Model parameters.
| Param | Description |
|---|---|
| Orbits | |
| P | Orbital period. |
| τ | Time of periastron passage |
| e | Eccentricity |
| i | Inclination of the orbital axis |
| Ω | Longitude of ascending node |
| ω | Argument of periastron of relative orbit |
| a | Semi-major axis of the relative orbit |
| a1 | Semi-major axis of the primary’s orbit |
| Astrometry | |
| ϖ | Parallax |
 |
Offset from reference position at t0 along α. |
| ∆δ0 | Offset from reference position at t0 along δ. |
 |
Proper motion along α |
| µδ | Proper motion along δ |
| Other | |
| f2/ f1 | Flux ratio |
| γx | Per-instrument RV zero-point offset |
| σjit,x | Per-instrument RV jitter term |
Notes. α and δ refer to right ascension and declination co-ordinates, respectively. We adopted ∆α∗ ≡ ∆α cos δ.
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