Table 6
Star and planet characteristics of the CoRoT-30 and CoRoT-31 systems.
| CoRoT-30 | CoRoT-31 | |
|---|---|---|
| Data from catalogs | ||
| CoRoT-ID | 631418634 | 600574166 |
| CoRoT-WinID | LRc07-E2L-4905 | SRa04-E2L-2567 |
| PPMXL | 5483892006672658120 | 2785130179564429581 |
| USNO-B1 | 0968-0410581 | 0855-0078347 |
| 2MASS | 18302427+0650094 | 06191697-0425201 |
| Gaia DR2 | 4477300378701511296 | 3020494716521521152 |
| Coordinates (J2000) | 18:30:24.264 +06:50:09.424 | 06:19:16.975 -04:25:20.194 |
| Magnitudes B, V, Gaia, R, I | 16.55, 15.65, 15.41, 15.27, 14.75 | 17.03,..., 15.47, 15.06, 14.59 |
| Gaia parallax (mas) | 0.942 ± 0.043 | 0.470 ± 0.038 |
| Results from stellar modeling | ||
| Star radius, R⋆ (R⊙) |  |
 |
| Star mass, M⋆ (M⊙) |  |
 |
| Star age (Gyr) |  |
 |
| Star distance (pc) |  |
2190 ± 710 |
| Results from light curve and radial velocity combined analysis | ||
| Planet period, P (day) | 9.06005 ± 0.00024 | 4.62941 ± 0.00075 |
| [9.05955, 9.06051] | [4.62824, 4.63117] | |
| Transit epoch, T0 (BJD − 2 455 000) | 665.5146 ± 0.0012 | 843.9445 ± 0.0044 |
| [665.5122, 665.5171] | [843.9346, 843.9523] | |
| Radius ratio, Rp∕R⋆ | 0.1140 ± 0.0032 | 0.0699 ± 0.0076 |
| [0.1092, 0.1221] | [0.0561, 0.0787] | |
| Scaled semi-major axis a∕R⋆ | 21.0 ± 1.4 | 7.2 ± 2.9 |
| [16.5, 22.1] | [5.3, 16.5] | |
| Impact parameter, b | 0.00 ± 0.16 | 0.87 ± 0.27 |
| [0.00, 0.56] | [0.00, 0.90] | |
| Orbital inclination, i (deg) | 90.00 ± 0.56 | 83.2 ± 2.3 |
| [88.09, 90.00] | [82.5, 90.0] | |
| Linear limb-darkening coefficient, u | 0.28 ± 0.10 | 0.40 ± 0.26 |
| [0.08, 0.49] | [0.02, 1.00] | |
| Systemic velocity, γ (km s−1) | − 34.931 ± 0.014 | 18.604 ± 0.024 |
| [−34.962, −34.905] | [18.563, 18.657] | |
| RV semi-amplitude, K (m s−1) | 283 ± 20 | 88 ± 35 |
| [255, 335] | [22, 169] | |
| Orbital eccentricity, e | 0.007 ± 0.031 | 0.02 ± 0.16 |
| [0.000, 0.100] | [0.00, 0.48] | |
| Argument of periastron, ω (deg) | 178.1 ± 100.2 | 303.6 ± 107.9 |
| [0.0, 360.0] | [0.1, 359.8] | |
| RV additional noise (m s−1) | 7 ± 16 | 66 ± 21 |
| [0, 52] | [46, 132] | |
| LC additional noise (ppm) | 992 ± 157 | 291 ± 274 |
| [645, 1285] | [0, 968] | |
| LC fractional contamination | 0.160 ± 0.037 | – |
| [0.088, 0.239] | – | |
| LC out-of-transit flux level (ppm) | 60 ± 110 | − 40 ± 170 |
| [−53, 393] | [−323, 351] | |
| Derived absolute physical parameters | ||
| Planet mass, Mp (MJ) | 2.90 ± 0.22 | 0.84 ± 0.34 |
| [2.49, 3.36] | [0.17, 1.52] | |
| Planet radius, Rp (RJ) | 1.009 ± 0.076 | 1.46 ± 0.30 |
| [0.930, 1.225] | [1.16, 2.21] | |
| Planet density, ρp (g cm−3) | 3.45 ± 0.65 | 0.33 ± 0.18 |
| [1.77, 4.33] | [0.00, 0.66] | |
| Planet semi-major axis, a (AU) | 0.0844 ± 0.0012 | 0.0586 ± 0.0034 |
| [0.0815, 0.0863] | [0.050, 0.065] | |
Notes. For the LC and RV combined analysis, the given values are the MAP and the standard deviation of the marginal posterior distribution of the parameters. In brackets we list the 95% highest density intervals (HDI) for the same distributions. HDI is defined as the interval containing 95% of the distribution mass, such that no point outside the interval has a higher density than any point within it.
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