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Table 2

Star and planet parameters.

Ephemeris
Planet orbital period P [days] 1.855558 ± 7.10-6
Transit epoch Ttr [BJD-2 454 900] 70.1803 ± 0.0003

Results from radial velocity observations
Orbital eccentricity e 0 (fixed)
Semi-amplitude K [m s-1] 85  ±  11
Systemic velocity Vr [km s-1] –27.066  ±  0.007
O–C residuals [m s-1] 24

Fitted transit parameters
Radius ratio k = Rp/R 0.0895 ± 0.0019
Orbital inclination I [deg] 88.3 ± 0.7
transit duration T14 [h] 2.376 ± 0.048
limb darkening coefficient u+ 0.98 ±  0.17
limb darkening coefficient u 0.16  ±  0.20

Deduced transit parameters
Scaled semi-major axis a/R   6.43 ± 0.05
Impact parameter b 0.19 ± 0.07
[solar units] 1.012 ± 0.009
Stellar density ρ   [gcm-3] 1.46 ± 0.04

Fitted and deduced Out-of-Transit parameters
phase of secondary transit φocc
planet day-side to stellar flux ratio Rday [ppm]
planet night-side to day-side flux ratio FN/D  < 0.24
relative stellar brightness zlev 0.99993 ± 0.00001
ecosω

Spectroscopic parameters
Effective temperature Teff [K] 5620  ±  140
Metallicity [Fe/H] [dex] 0.29 ± 0.16
Stellar rotational velocity υsini  [km s-1] 6.0  ±  2
Spectral type G6V

Stellar physical parameters from combined analysis
Star mass M [M] 1.12 ± 0.07
Star radius R [R] 1.02 ± 0.03
Surface gravity log ga 4.47  ±  0.12
Age of the star t [Myr]
Distance of the system [pc] 770  ±  100

Planetary physical parameters from combined analysis
Orbital semi-major axis ab [AU] 0.030 ± 0.001
Planet mass Mp [MJup] 0.55 ± 0.09
Planet radius Rp[RJup] 0.89  ±  0.05
Planet density ρp [gcm-3] 1.10 ± 0.18
Geometric albedo Ag 0.30 ± 0.07
Day-side temperaturecTday [K] 1730 ± 400

Notes. 

(a)

Derived from M   and R  ;

(b)

derived from a/R   and R  ;

(c)

considering no atmospheric thermal circulation (ε = 0).

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