Table 3
Planetary parameters obtained from the best-fit models.
| Parameter | XO-2S | XO-2N | ||
|---|---|---|---|---|
| b | c | d | b | |
| m sin i [MJ] | 0.26 ± 0.01 | 1.38 ± 0.05 |  |
0.594 ± 0.022 |
| P [d] | 18.220 ± 0.001 | 120.059 ± 0.013 |  |
2.61585906 ± 2.52e - 7 (1) |
| a [a.u.] | 0.1347 ± 0.0025 |  |
 |
0.03666 ± 0.00065 |
| e | 0.15 ± 0.02 | 0.149 ± 0.006 |  |
0 (fixed) |
| ω [degrees] | -59.1 ± 7.0 | -88.6 ± 2.8 |  |
90 (fixed) |
| K [m s−1] | 20.40 ± 0.43 | 58.0 ± 0.4 |  |
90.0 ± 1.0 |
| T0 [BJD-2400 000] | 58 834.8 ± 0.4 | 58 813.3 ± 1.0 |  |
58 843.2176 ± 0.0003 (1) |
| γRV [m s−1] |  |
 |
||
| jitter HARPS-N [m s−1] | 2.08 ± 0.29 |  |
||
| jitter HIRES [m s−1] | – |  |
||
| jitter HDS [m s−1] | – |  |
||
Notes. Physical and orbital parameters for the planets of both targets derived from RV fitting. The value of the mass of XO-2N b is not the m sin i but rather the true mass. The reported values are the medians of the resulting distributions and the error bars are the 15th and 84th percentile, respectively. The parameter T0 is the time of the periastron passage calculated with reference time BJD = 2 458 842.(1) Values derived using priors obtained from the TESS light curves of XO-2N.
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