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Table 5
Best-fit parameters obtained from our analyses using different combinations of RV data sets (CCF and LBL) and models (with and without a GP activity component).
| Parameter | CCF | LBL | CCF+GP | LBL+GP |
|---|---|---|---|---|
| RV semi-amplitude, Kp (ms−1) | 3.4 ± 0.7 | 2.4 ± 0.7 | 3.2 ± 0.7 | 1.3 ± 0.7 |
| Planet mass, Mp (M⊕) | 10.2 ± 2.1 | 7.1 ± 2.0 | 9.7 ± 2.1 | 6.8 ± 2.0 |
| Systemic velocity, vsys (ms−1) | −61072.2 ± 0.5 | −60993.2 ± 0.4 | −61072.2 ± 0.5 | −60993.2 ± 0.4 |
| Orbital period, P (days) | 18.849986 ± 0.000005 | 18.849979 ± 0.000006 | 18.849983 ± 0.000005 | 18.849975 ± 0.000006 |
| GP mean, μv (ms−1) | − | − | 0 ± 2 |  |
| GP white noise, σv (m s−1) | − | − |  |
 |
| GP amplitude, αv (ms−1) | − | − |  |
 |
| GP decay time, ls (days) | − | − |  |
 |
| GP smoothing factor, ßs | − | − |  |
 |
| GP period, Prot (days) | − | − |  |
 |
| χ2 | 1.23 | 0.75 | 0.74 | 0.55 |
| RMS (noplanet†)(ms−1) | 9.4 | 5.6 | 7.7 | 4.8 |
| RMS of residuals (ms−1) | 9.3 | 5.4 | 7.4 | 4.6 |
| ΔBIC§ (no planet†) | 335 | 43 | 246 | 6 |
| ΔBIC§ | 315 | 35 | 226 | 0 |
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