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Table A.2
Priors used for the S-index model with juliet.
| Parameter | Prior | Unit | Description |
|---|---|---|---|
| S-index parameters | |||
| γ0 |  (–10, 10) |
m s−1 | zero point for S-index |
| σ |  (0.01, 10) |
m s−1 | Extra jitter term for S-index |
| GP parameters | |||
| σGP |  (0, 20) |
m s−1 | Amplitude of the GP for the S-index |
| αGP |  (10−5, 1) |
day−2 | Inverse (squared) length-scale of the external parameter |
| ΓGP |  (0.01, 100) |
... | Amplitude of the sine-part of the kernel |
| Prot, GP |  (1, 500) |
d | Period of the GP quasi-periodic component for the S-index |
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