Transiting exoplanets from the CoRoT space mission - XVI. CoRoT-14b: an unusually dense very hot Jupiter

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Volume 528 (April 2011)

A&A, 528 (2011) A97

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Table 4

Planet and star parameters.

Ephemeris

Planet orbital period P [days]	1.51214 ± 0.00013
Primary transit epoch T_tr [HJD-2 400 000]	54 787.6694 ± 0.0053
Primary transit duration d_tr [h]	1.662 ± 0.044

Results from radial velocity observations

Epoch of periastron T₀ [HJD-2 400 000]	54 787.6702 (fixed)
Orbital eccentricity e	0 (fixed)
Radial velocity semi-amplitude K [m s^-1]	1230 ± 34

Fitted transit parameters

Radius ratio k = R_p/R_∗	0.0925 ± 0.0019
Limb darkening coefficients^au₊ = u_a + u_b	0.67 ± 0.03
u₋ = u_a − u_b	0.19 ± 0.03
Inclination i [deg]	79.6 ± 0.8

Deduced transit parameters

Scaled semi-major axis a/R_∗	4.78 ± 0.28
[solar units]	0.86 ± 0.02
Stellar density ρ_∗ [g cm^-3]	0.91 ± 0.17
Impact parameter^bb	0.86 ± 0.02

Spectroscopic parameters

Effective temperature T_eff [K]	6035 ± 100
Surface gravity log g [dex]	4.35 ± 0.15
Metallicity [ Fe/H ] [dex]	0.05 ± 0.15
Stellar rotational velocity v sin i[km s^-1]	9.0 ± 0.5
Spectral type	F9V

Stellar and planetary physical parameters from combined analysis

Star mass [M_⊙]	1.13 ± 0.09
Star radius [R_⊙]	1.21 ± 0.08
Distance of the system [pc]	1340 ± 110
Stellar rotation period P_rot [days]	5.7
Age of the star t [Gyr]	0.4–8.0
Orbital semi-major axis a [AU]	0.0270 ± 0.002
Planet mass M_p [M_J ]^c	7.6 ± 0.6
Planet radius R_p [R_J]^c	1.09 ± 0.07
Planet density ρ_p [gcm^-3]	7.3 ± 1.5
Equilibrium temperature^d [K]	1952 ± 66

Notes.

^(a)

I(μ)/I(1) = 1 − u_a(1 − μ) − u_b(1 − μ)², where I(1) is the specific intensity at the center of the disk and μ = cosγ, where γ is the angle between the surface normal and the line of sight.

^(b)

^(c)

Radius and mass of Jupiter taken as 71 492 km and 1.8986 × 10³⁰ g, respectively.

^(d)

Zero albedo equilibrium temperature for an isotropic planetary emission.

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