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Table 6
Median and 1-σ limits of the marginalized posterior distributions obtained for the WASP-72 system parameters as derived from our MCMC analysis.
| WASP-72 | ||
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| Free parameters | e ≥ 0 | e = 0 (adopted) |
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| Planet/star area ratio (Rp/R∗)2 [%] |
|
|
| b′ = acosip/R∗ [R∗] |
|
|
| Transit width W [d] | 0.1552 ± 0.0029 |
|
| T0 − 2 450 000 [HJDTDB] | 5583.6525 ± 0.0021 | 5583.6529 ± 0.0021 |
| Orbital period P [d] |
|
2.2167421 ± 0.0000081 |
| RV K2 [m s-1 d1/3] | 236.6 ± 5.6 | 236.1 ± 5.5 |
| RV γ [km s-1] | 35.923 ± 0.015 | 35.919 ± 0.014 |
| RV slope [m s-1 y-1] | −44 ± 19 | −39 ± 17 |
|
−0.022 ± 0.071 | 0 (fixed) |
|
−0.06 ± 0.11 | 0 (fixed) |
| c1Gunn − r | 0.938 ± 0.026 | 0.936 ± 0.026 |
| c2Gunn − r | −0.318 ± 0.016 | −0.319 ± 0.017 |
| c1BB | 0.820 ± 0.082 | 0.818 ± 0.078 |
| c2BB | −0.352 ± 0.046 | −0.352 ± 0.042 |
| c1I + z | 0.713 ± 0.041 | 0.710 ± 0.042 |
| c2I + z | −0.382 ± 0.028 | −0.383 ± 0.027 |
| Teff [K]a | 6250 ± 100 | 6250 ± 100 |
| [Fe/H]a | −0.06 ± 0.09 | −0.06 ± 0.09 |
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| Deduced stellar parameters | ||
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| Surface gravity log g∗ [cgs]a | 3.99 ± 0.10 |
|
| Density ρ∗ [ρ⊙] |
|
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| Mass M∗ [M⊙] | 1.382 ± 0.053 | 1.386 ± 0.055 |
| Radius R∗ [R⊙] | 1.97 ± 0.23 | 1.98 ± 0.24 |
| Luminosity L∗ [L⊙] |
|
|
| u1Gunn − r | 0.311 ± 0.013 | 0.311 ± 0.013 |
| u2Gunn − r | 0.3148 ± 0.0063 | 0.3147 ± 0.0060 |
| u1BB | 0.257 ± 0.043 | 0.256 ± 0.041 |
| u2BB | 0.305 ± 0.013 | 0.305 ± 0.014 |
| u1I + z | 0.209 ± 0.022 | 0.208 ± 0.022 |
| u2I + z | 0.295 ± 0.012 | 0.295 ± 0.013 |
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| Deduced planet parameters | ||
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| RV K [m s-1] | 181.3 ± 4.2 | 181.0 ± 4.2 |
| Rp/R∗ | 0.0650 ± 0.0029 | 0.0656 ± 0.0031 |
| btr [R∗] |
|
|
| boc [R∗] |
|
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| Toc − 2 450 000 [HJDTDB] | 5584.758 ± 0.042 | 5584.7612 ± 0.0021 |
| Orbital semi-major axisa [AU] | 0.03705 ± 0.00047 | 0.03708 ± 0.00050 |
| a/R∗ |
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| Orbital inclination ip [deg] |
|
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| Orbital eccentricitye |  , < 0.079 (95%) |
0 (fixed) |
| Argument of periastron ω [deg] |
|
– |
| Equilibrium temperature Teq [K]b |
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| Density ρp [ρJup] |
|
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| Surface gravity log gp [cgs] |
|
3.36 ± 0.12 |
| Mass Mp [MJup] | 1.459 ± 0.056 |
|
| Radius Rp [RJup] | 1.25 ± 0.19 | 1.27 ± 0.20 |
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