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Table 2
Planetary and stellar parameters for WASP-117 from a global MCMC analysis.
| Jump parameters | |
|
|
|
| Transit depth, ΔF |
|
| b′ = a ∗ cos(ip) [R∗] |
|
| Transit duration, T14 [d] |
|
| Mid-transit time, [HJD] − 2 450 000 |
|
| Period, P [d] | 10.02165 ± 0.00055 |
 [ms-1d1/3] |
51.7 ± 1.4 |
|
−0.258 ± 0.016 |
|
|
|
0.91 ± 0.14 |
|
−0.89 ± 0.23 |
| Stellar eff. temperature, Teff∗ [K] | 6038 ± 88 |
| Stellar metallicity, [Fe/H]∗ | −0.11 ± 0.14 |
| c1,r′ = 2u1,r′ + u2,r′ | 0.975 ± 0.031 |
| c2,r′ = u1,r′ − 2u2,r′ | −0.263 ± 0.018 |
| c1,z′ = 2u1,z′ + u2,z′ | 0.705 ± 0.022 |
| c2,z′ = u1,z′ − 2u2,z′ | −0.352 ± 0.012 |
|
|
|
| Deduced parameters | |
|
|
|
| RV amplitude, K [m s-1] | 25.16 ± 0.69 |
| RV zero point (HARPS), γHAR [km s-1] |
|
| RV zero point (CORALIE), γCOR [km s-1] | −16.044910 ± 4.7 × 10-5 |
| Planetary radius, Rp [RJ] |
|
| Planetary mass, Mp [MJ] | 0.2755 ± 0.0090 |
| Planetary mean density, ρp [ρJ] |
|
| Planetary grav. acceleration, log gp |
|
| Planetary eq. temperature, Teq [K]a,b |
|
| Planetary eq. temperature at periastron, Teq [K]a |
|
| Planetary eq. temperature at apoastron, Teq [K]a |
|
| Orbital semi-major axis, a [au] |
|
| a/R∗ | 17.39 ± 0.81 |
| Eccentricity, e | 0.302 ± 0.023 |
| Argument of periastron, ω [deg] |
|
| Inclination, ip [deg] | 89.14 ± 0.30 |
| Transit impact parameter, btr |
|
| Proj. orbital obliquity [deg], β | −44 ± 11 |
| Orbital obliquity [deg], ψ |
|
| Stellar mass, M∗ [M⊙] | 1.126 ± 0.029 |
| Stellar radius, R∗ [R⊙] |
|
| Stellar mean density, ρ∗ [ρ⊙] | 0.70 ± 0.10 |
| Stellar vsini∗ [km s-1] |
|
| Stellar inclination, i∗ [deg] |
|
| Limb-darkening coefficient, u1,r′ | 0.337 ± 0.016 |
| Limb-darkening coefficient, u2,r′ | 0.2997 ± 0.0058 |
| Limb-darkening coefficient, u1,z′ | 0.211 ± 0.011 |
| Limb-darkening coefficient, u2,z′ | 0.2818 ± 0.0033 |
Notes.
(a)
Equilibrium temperature, assuming A = 0 and F = 1 (Seager et al. 2005).
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