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Table 8
KOI-205 system parameters.
| Fitted system parameters | Díaz et al. (2013) | This work |
|
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| Orbital period P [days] | 11.7201248 ± 0.0000021 | 11.720126 ± 0.000011 |
| Transit epoch T0 [BJDTDB − 2 454 900] | 75.17325 ± 0.00012 | 286.13609 ± 0.00016 |
| Transit duration T14 [h] | 3.07 ± 0.15 | 3.069 ± 0.017 |
| Radius ratio Rp/R∗ | 0.09849 ± 0.00049 | 0.09906 ± 0.00094 |
| Inclination i [deg] | 88.46 ± 0.05 | 88.43 ± 0.06 |
| Limb-darkening coefficient q1 | – |
|
| Limb-darkening coefficient q2 | – |
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|
– | 0.00 ± 0.05 |
|
– | −0.03 ± 0.010 |
| Orbital eccentricity e | < 0.010 | < 0.015 |
| Radial-velocity semi-amplitude K [ km s-1] | 3.732 ± 0.039 |
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| Systemic velocity Vr [ km s-1] | 15.057 ± 0.026 | 14.922 ± 0.050 |
| RV jitter [ m s-1] sj | ~ 40 |
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| Derived transit parameters | ||
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| a/R∗ | 25.20 ± 0.42 | 25.07 ± 0.43 |
| Stellar density ρ∗ [gcm-3] | 2.18 ± 0.10 | 2.17 ± 0.11 |
| Impact parameter b | 0.676 ± 0.014 | 0.690 ± 0.011 |
| Limb-darkening coefficient ua | 0.523 ± 0.017 a | 0.47 ± 0.17 |
| Limb-darkening coefficient ub | 0.187 ± 0.011 a | 0.21 ± 0.24 |
| Atmospheric parameters of the star | ||
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| Effective temperature Teff[K] | 5237 ± 60 | 5400 ± 75 |
| Spectroscopic surface gravity log g [cgs] | 4.65 ± 0.07 | 4.7 ± 0.1 |
| Derived surface gravity log g [cgs] | 4.550 ± 0.015 | 4.558 ± 0.014 |
| Metallicity [Fe/H] [dex] | 0.14 ± 0.12 | 0.18 ± 0.12 |
| Stellar rotational velocity Vsini∗ [ km s-1] | 2.0 ± 1.0 | 2.0 ± 1.0 |
| Spectral type | K0V | G7V |
| Stellar and planetary physical parameters | ||
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| Stellar mass [M⊙] | 0.92 ± 0.03 |
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| Stellar radius [R⊙] | 0.84 ± 0.02 | 0.87 ± 0.02 |
| BD mass Mb [MJup] | 39.9 ± 1.0 |
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| BD radius Rb [RJup] | 0.81 ± 0.02 | 0.82 ± 0.02 |
| BD density ρb [gcm-3] | 100.4 ± 6.9 |
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| Age t [Gyr] |
|
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| Orbital semi-major axis a [au] | 0.0987 ± 0.0013 | 0.1010 ± 0.0010 |
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