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Table 3
Planet and star parameters.
| Ephemeris | |
|
|
|
| Planet orbital period P [days] | 3.6313 ± 0.0001 |
| Primary transit epoch Ttr [HJD-2 400 000] | 55 308.939 ± 0.001 |
| Primary transit duration dttr [h] | 3.888 ± 0.054 |
| Results from radial velocity observations | |
|
|
|
| Orbital eccentricity e | 0.16 ± 0.02 |
| Argument of periastron ω [deg] | 52 ± 9 |
| Radial velocity semi-amplitude K [ km s-1] | 0.377 ± 0.034 |
| Systemic velocity Vr [ km s-1] | –35.182 ± 0.003 |
| O-C residuals [ m s-1] | 35 |
| Fitted transit parameters | |
|
|
|
| Radius ratio k = Rp/R∗ | 0.0671 ± 0.0010 |
| Linear limb darkening coefficient au | 0.33 ± 0.08 |
| Impact parametercb | 0.56 +0.10 −0.23 |
| Deduced transit parameters | |
|
|
|
| Scaled semi-major axis a/R∗ b | 6.85 ± 0.60 |
 [solar units] |
0.641 ± 0.065 |
| Stellar density ρ∗ [gcm-3] | 0.50 ± 0.15 |
| Inclination i [deg] | 85.7 +2.6 –1.5 |
| Spectroscopic parameters | |
|
|
|
| Effective temperature Teff [K] | 5900 ± 100 |
| Surface gravity log g [dex] | 4.3 ± 0.2 |
| Metallicity [Fe/H] [dex] | 0.05 ± 0.1 |
| Stellar rotational velocity v sin i[ km s-1] | 9.0 ± 1 |
| Spectral type | G0 V |
| Stellar and planetary physical parameters from combined analysis | |
|
|
|
| Star mass [M⊙] | 1.14 ± 0.08 |
| Star radius [R⊙] | 1.61 ± .18 |
| Distance of the system [pc] | 600 ± 50 |
| Stellar rotation period Prot [days] | 9.2 ± 1.5 |
| Age of the star t [Gyr] | 7.2 –1 +1.5 |
| Orbital semi-major axis a [AU] | 0.048 ± 0.004 |
| Planet mass Mp [MJ]d | 2.8 ± 0.3 |
| Planet radius Rp[RJ]d | 1.05 ± 0.13 |
| Planet density ρp [gcm-3] | 3.0 ± 1.1 |
Equilibrium temperature f [K] |
1660 |
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