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Table 3
Kepler-41 system parameters.
| Fitted system parameters | Santerne et al. (2011a) | This work |
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| Orbital period P [days] | 1.855558 ± 0.000007 | 1.85555820 ± 0.00000052 |
| Transit epoch T0 [BJDTDB − 2 454 900] | 70.1803 ± 0.0003 | 287.280482 ± 0.000051 |
| Transit duration T14 [h] | 2.376 ± 0.048 | 2.4341 ± 0.0046 |
| Radius ratio Rp/R∗ | 0.0895 ± 0.0019 | 0.10265 ± 0.00042 |
| Inclination i [deg] | 88.3 ± 0.7 | 82.51 ± 0.09 |
| Limb-darkening coefficient q1 | – | 0.39 ± 0.04 |
| Limb-darkening coefficient q2 | – |
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| Orbital eccentricity e | 0 (fixed) | 0 (fixed) |
| Radial-velocity semi-amplitude K [ m s-1] | 85 ± 11 | 84 ± 11 |
| Systemic velocity Vr [ km s-1] | −27.066 ± 0.007 | −27.066 ± 0.008 |
| RV jitter [ m s-1] sj | – |
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| Derived transit parameters | ||
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| a/R∗ | 6.43 ± 0.05 | 5.159 ± 0.023 |
| Stellar density ρ∗ [gcm-3] | 1.46 ± 0.04 | 0.754 ± 0.010 |
| Impact parameter b | 0.19 ± 0.07 | 0.672 ± 0.005 |
| Limb-darkening coefficient ua | 0.57 ± 0.13 | 0.46 ± 0.07 |
| Limb-darkening coefficient ub | 0.41 ± 0.13 | 0.16 ± 0.10 |
| Atmospheric parameters of the star | ||
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| Effective temperature Teff[K] | 5620 ± 140 | 5750 ± 100 |
| Spectroscopic surface gravity log g [cgs] | 4.20 ± 0.15 | 4.20 ± 0.10 |
| Derived surface gravity log g [cgs] | 4.47 ± 0.12 | 4.278 ± 0.005 |
| Metallicity [Fe/H] [dex] | 0.29 ± 0.16 | 0.38 ± 0.11 |
| Stellar rotational velocity Vsini∗ [ km s-1] | 6 ± 2 | 6 ± 2 |
| Spectral type | G6V | G2V |
| Stellar and planetary physical parameters | ||
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| Stellar mass [M⊙] | 1.12 ± 0.07 | 1.15 ± 0.04 |
| Stellar radius [R⊙] | 1.02 ± 0.03 | 1.29 ± 0.02 |
| Planetary mass Mp [MJup] | 0.55 ± 0.09 | 0.56 ± 0.08 |
| Planetary radius Rp [RJup] | 0.89 ± 0.05 | 1.29 ± 0.02 |
| Planetary density ρp [gcm-3] | 1.10 ± 0.18 | 0.33 ± 0.04 |
| Planetary surface gravity log gp [cgs] | 3.23 ± 0.09 | 2.92 ± 0.06 |
| Age t [Gyr] |
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| Orbital semi-major axis a [au] | 0.030 ± 0.010 | 0.03101 ± 0.0004 |
| Equilibrium temperature Teq [K]a | 1730 ± 40 | 1790 ± 31 |
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