Table 3
Model comparison of RV fits done with juliet comparing a Keplerian model, a red-noise model, and a mixture of both for the various instrument data sets: CARMENES VIS1, CARMENES NIR1, and the combined data set.
| QP-GP | dSHO-GP | |||||||
|---|---|---|---|---|---|---|---|---|
| circ. | ecc. | GP | circ. + GP | ecc. + GP | GP | circ. + GP | ecc. + GP | |
| CARMENES VIS1 | ||||||||
| Pstable |  |
 |
… |  |
 |
… |  |
 |
| Kstable |  |
 |
… |  |
 |
… |  |
 |
| Pgp | … | … |  |
 |
 |
 |
 |
 |
| ecc. | 0.0 (fixed) |  |
… | 0.0 (fixed) |  |
… | 0.0 (fixed) |  |
| σGP, CARMENES VIS1 | … | … |  |
 |
 |
 |
 |
 |
| σCARMENES VIS1 |  |
 |
 |
 |
 |
 |
 |
 |
| ln Z | −94.06 | −87.71 | −90.06 | –90.39 | –87.08 | –87.86 | –88.18 | –87.05 |
| Δ ln Z | −6.35 | 0.0 | −2.35 | −2.68 | 0.64 | −0.14 | −0.46 | 0.66 |
| CARMENES NIR1 | ||||||||
| Pstable |  |
 |
… |  |
 |
… |  |
 |
| Kstable |  |
 |
… |  |
 |
… |  |
 |
| ecc. | 0.0 (fixed) |  |
… | 0.0 (fixed) |  |
… | 0.0 (fixed) |  |
| Pgp | … | … |  |
 |
 |
 |
 |
 |
| σGP, CARMENES NIR1 | … |  |
 |
 |
 |
 |
 |
|
| σCARMENES NIR1 |  |
 |
 |
 |
 |
 |
 |
 |
| ln Z | −109.92 | −108.95 | −109.88 | −108.72 | −108.30 | −111.07 | −108.98 | −108.32 |
| Δ ln Z | 0.0 | 0.97 | 0.04 | 1.19 | 1.62 | −1.15 | 0.94 | 1.60 |
| HIRES + HARPS + CARMENES VIS + CARMENES NIR + HARPS-N + HPF | ||||||||
| Pstable |  |
 |
… |  |
 |
… |  |
 |
| Kstable |  |
 |
… |  |
 |
… |  |
 |
| PGP | … | … |  |
 |
 |
 |
 |
 |
| ecc. | … |  |
… | … |  |
… | … |  |
| σGP, HIRES | … | … |  |
 |
 |
 |
 |
 |
| σGP, HARPS | … | … |  |
 |
 |
 |
 |
 |
| σGP, CARMENES VIS1 | … | … |  |
 |
 |
 |
 |
 |
| σGP, CARMENES NIR1 | … | … |  |
 |
 |
 |
 |
 |
| σGP, HARPS-N1 | … | … |  |
 |
 |
 |
 |
 |
| σGP, HARPS-N2 | … | … |  |
 |
 |
 |
 |
 |
| σGP, CARMENES VIS2 | … | … |  |
 |
 |
 |
 |
 |
| σGP, CARMENES NIR2 | … | … |  |
 |
 |
 |
 |
 |
| σGP, HPF1 | … | … |  |
 |
 |
 |
 |
 |
| σGP, HPF2 | … | … |  |
 |
 |
 |
 |
 |
| σHIRES |  |
 |
 |
 |
 |
 |
 |
 |
| σHARPS |  |
 |
 |
 |
 |
 |
 |
 |
| σCARMENES VIS1 |  |
 |
 |
 |
 |
 |
 |
 |
| σCARMENES NIR1 |  |
 |
 |
 |
 |
 |
 |
 |
| σHARPS-N1 |  |
 |
 |
 |
 |
 |
 |
 |
| σHARPS-N2 |  |
 |
 |
 |
 |
 |
 |
 |
| σCARMENES VIS2 |  |
 |
 |
 |
 |
 |
 |
 |
| σCARMENES NIR2 |  |
 |
 |
 |
 |
 |
 |
 |
| σHPF1 |  |
 |
 |
 |
 |
 |
 |
 |
| σHPF2 |  |
 |
 |
 |
 |
 |
 |
 |
| ln Z | −1143.31 | −1143.38 | −1002.17 | −992.50 | −993.37 | −966.77 | −963.40 | −965.73 |
| Δ ln Z | −179.91 | −179.99 | −38.77 | −29.10 | −29.98 | −3.37 | 0.0 | −2.33 |
Notes. The selected best model is boldfaced (refer to Sect. 6 for details on the priors used, model choice, and discussion of results). The columns refer to which model was being used, whereas the rows correspond to the model parameter. A larger, positive Δ ln Z value indicates a better model. Priors for the NIR arm are slightly different because of the lower data quality, hence, the period priors are wider, U(2.2 days, 2.5 days).
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