Table 9
Physical parameters of the planetary system WASP-11/HAT-P-10 derived in this work.
| Parameter | Nomen./Unit | This work | West et al. (2009) | Bakos et al. (2009) | Wang et al. (2014) |
|
|
|||||
| Stellar parameters | |||||
| Spectral class...... | K3 V | K | K | ... | |
| Effective temperature...... | Teff (K) | 4900 ± 65 | 4800 ± 100 | 4980 ± 60 | ... |
| Metal abundance...... | [ Fe / H ] | + 0.12 ± 0.09 | + 0.0 ± 0.2 | + 0.13 ± 0.08 | ... |
| Proj. rotational velocity...... | vsini⋆ (km s-1) | 1.04 ± 0.15 | < 6.0 | 0.5 ± 0.2 | ... |
| Linear LD coefficient...... | u | 0.78 ± 0.16 | ... | ... | ... |
| Mass...... | M⋆ ( M⊙) | 0.806 ± 0.038 ± 0.013 |
|
0.83 ± 0.03 | 0.862 ± 0.014 |
| Radius...... | R⋆ (R⊙) | 0.772 ± 0.014 ± 0.004 |
|
0.79 ± 0.02 |
|
| Mean density...... | ρ⋆ (ρ⊙) | 1.748 ± 0.074 | ... | ... |
|
| Logarithmic surface gravity......... | log g⋆ (cgs) | 4.569 ± 0.018 ± 0.002 | 4.45 ± 0.20 | 4.56 ± 0.02 | ... |
| Age...... | (Gyr) |
|
... | 7.9 ± 3.8 | ... |
|
|
|||||
| Planetary parameters | |||||
| Mass...... | Mp (MJup) | 0.492 ± 0.023 ± 0.005 | 0.53 ± 0.07 | 0.487 ± 0.018 | 0.526 ± 0.019 |
| Radius...... | Rp (RJup) | 0.990 ± 0.022 ± 0.005 |
|
|
|
| Mean density...... | ρp (ρJup) | 0.475 ± 0.026 ± 0.002 |
|
0.594 ± 0.052 |
|
| Surface gravity...... | gp (m s-2) | 12.45 ± 0.50 |
|
12.02 ± 0.83 | ... |
| Equilibrium temperature...... | Teq (K) | 992 ± 14 | 960 ± 70 | 1020 ± 17 |
|
| Safronov number...... | Θ | 0.0539 ± 0.0019 ± 0.0003 | ... | 0.053 ± 0.002 | ... |
|
|
|||||
| Orbital parameters | |||||
| Time of mid-transit...... | T0 (BJDTDB) |
2 454 729.90716
± 0.00020 |
2 454 473.05588
± 0.00020 |
2 454 759.68683
± 0.00016 |
2 454 808.07904
± 0.00012 |
| Period...... | Porb (days) |
3.72247967
± 0.00000045 |
3.722465
± 0.000007 |
3.7224747
± 0.0000065 |
3.72247669
± 0.00000181 |
| Semi-major axis...... | a (au) |
0.04375
± 0.00070 ± 0.00023 |
0.043 ± 0.002 | 0.0435 ± 0.0006 | 0.04473 ± 0.00024 |
| Inclination...... | i (degree) | 89.03 ± 0.34 |
|
|
|
| RV curve semi-amplitude...... | KA (m s-1) | 82.7 ± 4.2 a | 82.1 ± 7.4 | 74.5 ± 1.8 |
|
| Barycentric RV...... | γ (km s-1) | 4.8951 ± 0.0021 | 4.9077 ± 0.0015 | 3.95 ± 0.43 | ... |
| Proj. spin-orbit angle...... | λ (degree) | 7 ± 5 | ... | ... | ... |
Notes. Where two errorbars are given, the first refers to the statistical uncertainties and the second to the systematic errors.
This value of KA was determined from our RV data, which were taken during transit time only. The value reported by Bakos et al. (2009), which is based on RV data with a much better coverage of the orbital phase, was therefore preferred for the determination of the other physical parameters of the system (see Sect. 5).
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