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Home All issues Volume 496 / No 1 (March II 2009) A&A, 496 1 (2009) 259-267 Full HTML
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Table 3:

WASP-4 and WASP-5 system parameters and 1-$\sigma $ error limits derived from MCMC analysis.
Parameter Symbol WASP-4 WASP-5 Units
Transit epoch (HJD) T0 $ 2~454~383.313070^{\rm + 0.000045}_{- 0.000074} $ $ 2~454~373.99598^{\rm + 0.00025} _{-0.00019} $ days
Orbital period P $ 1.3382324^{\rm + 0.0000017 }_{- 0.0000029 } $ $ 1.6284279^{\rm +0.0000022}_{-0.0000049} $ days
Planet/star area ratio $ (R_{\rm p}/R_{\rm s})^2 $ $ 0.02357 ^{\rm + 0.00010 }_{- 0.00008 } $ $ 0.01180^{\rm +0.00022}_{-0.00029} $  
Transit duration tT $ 0.08831^{\rm + 0.00016}_{- 0.00021} $ $ 0.0987^{\rm +0.0022}_{-0.0020}$ days
Impact parameter b $ 0.063^{\rm + 0.047}_{- 0.062} $ $ 0.31^{\rm +0.06}_{-0.28} $ R*
Stellar reflex velocity K1 $ 0.2476^{\rm + 0.0139}_{-0.0068} $ $ 0.2797^{\rm +0.0092}_{-0.0063}$ km s-1
Centre-of-mass velocity $\gamma$ $ 57.7387 ^{\rm + 0.0026}_{- 0.0013} $ $20.0087 ^{\rm +0.0032}_{-0.0025}$ km s-1
Orbital semi-major axis a $ 0.02255 ^{\rm + 0.00095}_{- 0.00065} $ $0.0267^{\rm +0.0012} _{-0.0008}$ AU
Orbital inclination I $ 89.35^{\rm + 0.64 }_{- 0.49} $ $86.9 ^{\rm +2.8}_{-0.7}$ degrees
Orbital eccentricity e 0.0 (fixed) $0.038 ^{\rm + 0.026}_{-0.018}$  
Longitude of periastron $\omega$ - $0.60^{\rm +0.47}_{-0.39}$ rad
Stellar mass M* $ 0.85^{\rm + 0.11 }_{- 0.07} $ $0.96 ^{\rm +0.13}_{-0.09}$ $M_\odot$
Stellar radius R* $ 0.873^{\rm + 0.036}_{- 0.027} $ $1.029 ^{\rm +0.056}_{-0.069}$ $R_\odot$
Stellar surface gravity $ \log g_* $ $ 4.487^{\rm + 0.019}_{- 0.015} $ $ 4.395^{\rm +0.043}_{-0.040}$ [cgs]
Stellar density $ \rho_* $ $ 1.284^{\rm + 0.013}_{- 0.019} $ $ 0.88 \pm 0.12 $ $\rho_\odot$
Planet radius $ R_{\rm p} $ $ 1.304 ^{\rm + 0.054}_{- 0.042} $ $ 1.087^{\rm +0.068}_{-0.071}$ RJ
Planet mass $ M_{\rm p}$ $ 1.21 ^{\rm + 0.13}_{- 0.08} $ $1.58 ^{\rm +0.13}_{-0.10}$ MJ
Planetary surface gravity $ \log g_{\rm p} $ $ 3.212 ^{\rm + 0.025}_{- 0.011} $ $3.485 ^{\rm +0.054}_{-0.043}$ [cgs]
Planet density $ \rho_{\rm p} $ $ 0.546 ^{\rm + 0.039 }_{- 0.025} $ $ 1.23 ^{\rm +0.26}_{-0.16} $ $\rho_{\rm Jup}$
Planet temperature (A=0, F=1) $ T_{{\rm eq}} $ $ 1650 \pm 30 $ $1706 ^{\rm +52}_{-48}$ K

Source LaTeX | All tables | In the text

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