Table A.1
Bayesian log-evicence (log Z) and the Ross 176 b semi-amplitude (K) for the studied RV models.
| Model | logZ | K [ms−1] |
|---|---|---|
| Flat line | −290.40 | ... |
| Planet | −293.34 | 2.44 |
| Planet + 8 d sine function | −291.30 | 2.54 |
| Planet + 16 d sine function | −290.59 | 2.11 |
| Planet + 32 d sine function | −290.40 | 2.03 |
| GP (7-60 d) | −290.20 | ... |
| Planet + GP (8 d) | −281.21 | 2.54 |
| Planet + GP (16 d) | −280.80 | 2.56 |
| Planet + GP (7-60 d) | −280.96 | 2.58 |
| Planet + GP (16 d) + Keplerian (2-4, 6-15 and 17-60 d) | −291.40 | 2.55 |
References. The flat line model includes only the jitter term. Planet stands for a Keplerian for the transiting planet signal. The extra signals detected in the RV periodogram are fitted using a Keplerian or a GP with a quasi-periodic kernel. We performed a fit for the 8-days signal which is close to the second harmonic of the stellar rotation period (∼ 10 days). The last model with several Keplerians at different periods is related to find inner or outer non-transiting planets.
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