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Table 5
Median and 1-σ limits of the marginalized posterior distributions obtained for the WASP-64 system parameters as derived from our MCMC analysis.
| WASP-64 | ||
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| Free parameters | e ≥ 0 | e = 0 (adopted) |
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| Planet/star area ratio (Rp/R∗)2 [%] | 1.524 ± 0.025 | 1.522 ± 0.025 |
| b′ = acosip/R∗ [R∗] |
|
|
| Transit width W [d] | 0.10005 ± 0.00047 | 0.09999 ± 0.00046 |
| T0 − 2 450 000 [HJDTDB] | 5582.60171 ± 0.00026 | 5582.60169 ± 0.00027 |
| Orbital period P [d] | 1.5732918 ± 0.0000015 | 1.5732918 ± 0.0000015 |
| RV K2 [m s-1 d1/3] | 248 ± 14 | 257 ± 11 |
| RV γ [km s-1] | 33.191 ± 0.010 | 33.1854 ± 0.0057 |
|
|
0 (fixed) |
|
−0.10 ± 0.15 | 0 (fixed) |
| c1V | 1.167 ± 0.058 | 1.168 ± 0.058 |
| c2V | 0.017 ± 0.056 | 0.016 ± 0.061 |
| c1Gunn − r | 0.983 ± 0.050 | 0.985 ± 0.050 |
| c2Gunn − r | −0.121 ± 0.044 | −0.122 ± 0.045 |
| c1BB | 1.040 ± 0.045 | 1.041 ± 0.045 |
| c2BB | −0.129 ± 0.053 | −0.125 ± 0.051 |
| c1I + z | 0.859 ± 0.053 | 0.856 ± 0.053 |
| c2I + z | −0.206 ± 0.041 | −0.208 ± 0.0241 |
| Teff [K]a | 5400 ± 100 | 5400 ± 100 |
| [Fe/H]a | −0.08 ± 0.11 | −0.08 ± 0.11 |
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| Deduced stellar parameters | ||
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| Density ρ∗ [ρ⊙] |
|
|
| Surface gravity log g∗ [cgs] |
|
4.392 ± 0.016 |
| Mass M∗ [M⊙] |
|
1.004 ± 0.028 |
| Radius R∗ [R⊙] |
|
1.058 ± 0.025 |
| Luminosity L∗ [L⊙] | 0.90 ± 0.15 | 0.95 ± 0.13 |
| u1V | 0.470 ± 0.033 | 0.470 ± 0.035 |
| u2V | 0.226 ± 0.027 | 0.227 ± 0.028 |
| u1Gunn − r | 0.369 ± 0.027 | 0.370 ± 0.027 |
| u2Gunn − r | 0.245 ± 0.020 | 0.246 ± 0.020 |
| u1BB | 0.391 ± 0.025 | 0.392 ± 0.025 |
| u2BB | 0.259 ± 0.023 | 0.259 ± 0.022 |
| u1I + z | 0.302 ± 0.028 | 0.301 ± 0.028 |
| u2I + z | 0.255 ± 0.017 | 0.255 ± 0.018 |
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| Deduced planet parameters | ||
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| RV K [m s-1] | 214 ± 13 | 221 ± 11 |
| Rp/R∗ | 0.1234 ± 0.0011 | 0.1234 ± 0.0011 |
| btr [R∗] |
|
|
| boc [R∗] |
|
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| Toc − 2 450 000 [HJDTDB] |
|
5583.38834 ± 0.00029 |
| Orbital semi-major axisa [AU] |
|
0.02648 ± 0.00024 |
| a/R∗ |
|
|
| Orbital inclination ip [deg] |
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|
| Orbital eccentricitye |  , < 0.132 (95%) |
0 (fixed) |
| Argument of periastron ω [deg] |
|
– |
| Equilibrium temperature Teq [K]b |
|
1689 ± 49 |
| Density ρp [ρJup] |
|
|
| Surface gravity log gp [cgs] |
|
3.292 ± 0.030 |
| Mass Mp [MJup] | 1.217 ± 0.083 | 1.271 ± 0.068 |
| Radius Rp [RJup] |
|
1.271 ± 0.039 |
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