Table 6
Orbital and planetary parameters for WASP-174b.
| Parameter | This work | Temple et al. (2018) | |
|---|---|---|---|
| Isochrone | Empirical | ||
| (fiducial) | |||
| Light curve parameters | |||
| P (days) | 4.2337005 ± 0.0000018 | 4.2337006 ± 0.0000017 | 4.233700 ± 0.000003 |
| Tc (BJD) | 2458545.52660 ± 0.00014 | 2458545.52661 ± 0.00013 | 2457465.9322 ± 0.0005 |
| T14 (days) | 0.08726 ± 0.00065 | 0.08739 ± 0.00073 | 0.084 ± 0.002 |
| a∕R⋆ | 8.789 ± 0.088 |  |
– |
| ζ∕R⋆ | 43.1 ± 2.2 |  |
– |
| Rp∕R⋆ | 0.1098 ± 0.0030 | 0.1100 ± 0.0044 | – |
 |
– | – | 0.0089 ± 0.0003 |
| b2 |  |
 |
– |
| b ≡ acosi∕R⋆ |  |
 |
0.92 ± 0.03 |
| i (deg) | 83.780 ± 0.096 | 83.77 ± 0.15 | 84.5 ± 0.6 |
| Limb-darkening coefficients (a) | |||
| c1, g | 0.39 ± 0.13 | 0.40 ± 0.13 | – |
| c2, g | 0.21 ± 0.15 | 0.22 ± 0.15 | – |
| c1, r | 0.30 ± 0.12 | 0.29 ± 0.12 | – |
| c2, r | 0.18 ± 0.14 | 0.21 ± 0.14 | – |
| c1, R | 0.24 ± 0.15 | 0.22 ± 0.14 | – |
| c2, R | 0.20 ± 0.17 | 0.25 ± 0.18 | – |
| c1, i | 0.18 ± 0.11 | 0.20 ± 0.10 | – |
| c2, i | 0.13 ± 0.14 | 0.14 ± 0.12 | – |
| c1, z | 0.129 ± 0.089 | 0.141 ± 0.091 | – |
| c2, z | 0.20 ± 0.12 | 0.19 ± 0.12 | – |
| c1, J | 0.26 ± 0.13 | 0.29 ± 0.13 | – |
| c2, J | 0.30 ± 0.15 | 0.28 ± 0.16 | – |
| c1, H | 0.35 ± 0.13 | 0.32 ± 0.13 | – |
| c2, H | 0.23 ± 0.16 | 0.29 ± 0.16 | – |
| c1, K | 0.142−0.099+0.142 | 0.16 ± 0.11 | – |
| c2, K | 0.19 ± 0.16 | 0.18 ± 0.15 | – |
| c1, TESS | 0.19 ± 0.12 | 0.17 ± 0.11 | – |
| c2, TESS | 0.10 ± 0.14 | 0.11 ± 0.15 | – |
| RV properties | |||
| K (m s−1) | 36.1 ± 9.8 | 38.4 ± 9.1 | – |
| e | 0 | 0 | 0 |
| RV jitter FEROS (m s−1) | < 6.0 | <6.1 | – |
| RV jitter HARPS (m s−1) | < 2.8 | <12.6 | – |
| RV jitter CORALIE (m s−1) | < 19.2 | <25.7 | – |
| Planetary parameters | |||
| Mp (MJup) | 0.330 ± 0.091 | 0.366 ± 0.088 | <1.3 |
| Rp (RJup) | 1.437 ± 0.050 | 1.462 ± 0.075 | 1.2 ± 0.5 |
| C(Mp, Rp) | −0.00 | 0.15 | – |
| ρp (g cm−3) | 0.135 ± 0.042 |  |
– |
| log gp (cgs) | 2.59 ± 0.13 | 2.63 ± 0.12 | – |
| a (au) | 0.05503 ± 0.00056 |  |
0.0555 ± 0.0009 |
| Teq (K) | 1528 ± 17 | 1521 ± 19 | 1557 ± 14 |
| Θ | 0.0203 ± 0.0056 | 0.0214 ± 0.0051 | – |
| log 10 ⟨F⟩ (cgs) | 9.089 ± 0.019 | 9.085 ± 0.021 | – |
Notes. Both the isochrone- and empirical-model results are reported and compared with those from the discovery paper. (a) A quadratic law was used and the LD coefficients were allowed to vary, but with Gaussian priors adopted from the tabulations by Claret et al. (2012, 2013) and Claret (2018).
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