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Table B.1
Priors used for the joint LC and RV fit of TOI-1238.
| Parameter | Prior | Unit | Description |
|---|---|---|---|
| Stellar parameter | |||
| ρ⋆ |  (4254.2, 578.2) |
kg m−3 | Stellar density |
| Photometric parameters | |||
| γTESS, S14 |  (0, 0.1) |
ppm | The offset relative flux for TESS |
| γTESS, S15 |  (0, 0.1) |
ppm | The offset relative flux for TESS |
| γTESS, S21 |  (0, 0.1) |
ppm | The offset relative flux for TESS |
| γTESS, S22 |  (0, 0.1) |
ppm | The offset relative flux for TESS |
| σTESS, S14 |  (1e−6, 0.03) |
ppm | A jitter added in quadrature to the error bars of instrument |
| σTESS, S15 |  (1e−6, 0.02) |
ppm | A jitter added in quadrature to the error bars of instrument |
| σTESS, S21 |  (1e−6, 0.02) |
ppm | A jitter added in quadrature to the error bars of instrument |
| σTESS, S22 |  (1e−6, 0.03) |
ppm | A jitter added in quadrature to the error bars of instrument |
| q1TESS |  (0, 1) |
... | Limb-darkening for photometric instrument |
| q2TESS |  (0, 1) |
... | Limb-darkening for photometric instrument |
| DTESS | 1 (fixed) | ... | The dilution factor for the photometric instrument. |
| RV parameters | |||
| γ |  (-100, 100) |
m s−1 | RV zero point for CARMENES |
| σ |  (0.001, 10) |
m s−1 | A jitter added in quadrature |
| GP parameters | |||
| σGP,RV |  (0.01, 50) |
m s−1 | Amplitude of the GP for the RVs |
| αGP,RV |  (1e−8, 1) |
d−2 | Inverse (squared) length-scale of the external parameter |
| ΓGP,RV |  (1e−8, 10) |
... | Amplitude of the sine-part of the kernel |
| Prot, GP,RV |  (20, 80) |
d | Period of the quasi-periodic kernel |
| Planet b parameters | |||
| P |  (0.764, 0.001) |
d | Period |
| t0 (BJD-2,457,000) |  (1684.1, 0.01) |
d | Time of periastron passage |
| e | 0 (fixed) | ... | Orbital eccentricity |
| ω | 90 (fixed) | deg | Periastron angle |
| K |  (0, 8) |
m s−1 | RV semi-amplitude |
| r1 |  (0, 1) |
... | Parameterization for p and b |
| r2 |  (0, 1) |
... | Parameterization for p and b |
| Planet c parameters | |||
| P |  (3.294, 0.001) |
d | Period |
| t0 (BJD-2,457,000) |  (1707.34, 0.01) |
d | Time of periastron passage |
| e | 0 (fixed) | ... | Orbital eccentricity |
| ω | 90 (fixed) | deg | Periastron angle |
| K |  (0, 8) |
m s−1 | RV semi-amplitude |
| r1 |  (0, 1) |
... | Parameterization for p and b |
| r2 |  (0, 1) |
... | Parameterization for p and b |
| External companion parameters | |||
| P |  (400, 1500) |
d | Period |
| t0 (BJD-2,457,000) |  (1900, 3000) |
d | Time of periastron passage |
| e | 0 (fixed) | ... | Orbital eccentricity |
| ω | 90 (fixed) | deg | Periastron angle |
| K |  (0, 300) |
m s−1 | RV semi-amplitude |
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