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Table A.3
Priors used for GJ 720 Ab fitting the RV+GP model with juliet.
| Parameter | Prior | Unit | Description |
|---|---|---|---|
| RV parameters | |||
| γ0 |  (–10, 10) |
m s−1 | RV zero point for HARPS-N |
| σ |  (0.01, 10) |
m s−1 | Extra jitter term for HARPS-N |
| GP parameters | |||
| σGP,RV |  (0, 10) |
m s−1 | Amplitude of the GP for the RVs |
| αGP,RV |  (10−11, 10−6) |
day−2 | Inverse (squared) length-scale of the external parameter |
| ΓGP,RV |  (0.01, 100) |
... | Amplitude of the sine-part of the kernel |
| Prot, GP,RV |  (30, 50) |
d | Period of the GP quasi-periodic component for the RVs |
| Planet parameters | |||
| P |  (19.5, 0.5) |
d | Period of planet b |
| T0 (BJD-2 456 400) |  (0,15) |
d | Time of periastron passage |
| e |  (0, 0.8) |
... | Orbital eccentricity of planet b |
| ω |  (0, 360) |
deg | Periastron angle of planet b |
| K |  (0, 10) |
m s−1 | RV semi-amplitude of planet b |
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