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Home All issues Volume 506 / No 1 (October IV 2009) A&A, 506 1 (2009) 359-367 Full HTML
 

 

Table 1:

CoRoT-1 system parameters and 1-$\sigma $ error limits derived from the MCMC analysis.
Parameter Value Bayesian penalty B08 Unit
Jump parameters        
Transit epoch T0 $ 2~454~524.62324^{\rm +0.00009}_{-0.00013}$   2 454 159.4532 $\pm $ 0.0001 BJD
Planet/star area ratio $(R_{\rm p}/R_{\rm s})^2 $ $ 0.01906^{\rm +0.00020}_{-0.00040} $   $0.01927 \pm 0.00058$  
Transit width W $ 0.10439 \pm 0.00094 $     day
2.09 $\mu $m occultation depth $0.00278^{\rm + 0.00043}_{- 0.00066}$      
$b'=a\cos{i}/R_\ast$ $ 0.398^{\rm + 0.032}_{- 0.043} $   $0.420 \pm 0.043$ R*
RV K2 $215^{\rm +15}_{-16}$   $216 \pm 13$  
RV $\gamma_1$ $23.366^{\rm +0.020}_{-0.017}$     km s-1
RV $\gamma_2$ $23.350^{\rm +0.012}_{-0.011}$     km s-1
$e\cos{\omega}$ $0.0083^{\rm +0.0038}_{-0.0025}$      
$e\sin{\omega}$ $-0.070^{\rm +0.029}_{-0.042}$      
$A_{\rm transit}$ $0.99963^{\rm +0.00028}_{-0.00009}$      
$B_{\rm transit}$ $0.017^{\rm +0.003}_{-0.018}$     day-2
$C_{\rm transit}$ $-0.10^{\rm +0.12}_{-0.02}$     day-1
$A_{\rm occultation}$ $1.00041^{\rm +0.00096}_{-0.00052}$      
$B_{\rm occultation}$ $-0.008^{\rm +0.007}_{-0.023}$     day-2
$C_{\rm occultation}$ $0.029^{\rm +0.079}_{-0.029}$     day-1
Orbital period P $ 1.5089686^{\rm + 0.0000005}_{- 0.0000006} $ from timings in Bean (2009) 1.5089557 $\pm $ 0.0000064 day
Stellar mass $ M_\ast $ $ 1.01^{\rm +0.13}_{-0.22}$ 0.93 $\pm $ 0.18 0.95 $\pm $ 0.15 $M_\odot $
R-filter c1 $ 0.794^{\rm + 0.047}_{- 0.048}$ 0.909 $\pm $ 0.067    
R-filter c2 $ -0.444^{\rm + 0.054 }_{- 0.032}$ -0.423 $\pm $ 0.046    
Deduced parameters        
RV K $ 188 \pm 14 $   188 $\pm $ 11 m s-1
$b_{\rm transit}$ $ 0.426^{\rm + 0.035}_{- 0.042} $   $0.420 \pm 0.043$ R*
$b_{\rm occultation}$ $ 0.370^{\rm + 0.037}_{- 0.049} $   $0.420 \pm 0.043$ R*
Orbital semi-major axis a $ 0.0259 ^{\rm + 0.0011}_{- 0.0020} $   $0.0254 \pm 0.0014$ AU
Orbital inclination i $ 85.66^{\rm +0.62}_{-0.48} $   85.1 $\pm $ 0.5 degree
Orbital eccentricity e $ 0.071^{\rm +0.042}_{-0.028} $   0 (fixed)  
Argument of periastron $\omega$ $276.7^{\rm +5.9}_{-4.3}$     degree
Stellar radius $ R_\ast $ $ 1.057^{\rm + 0.055}_{- 0.094} $   1.11 $\pm $ 0.05 $R_\odot$
Stellar density $\rho_* $ $0.86^{\rm + 0.13}_{- 0.08} $   $0.698 \pm 0.033$ $\rho_{\odot}$
R-filter u1 $ 0.229^{\rm + 0.025 }_{- 0.022}$      
R-filter u2 $ 0.336^{\rm + 0.012}_{- 0.020}$      
Planet radius $ R_{\rm p} $ $ 1.45 ^{\rm + 0.07}_{- 0.13} $   1.49 $\pm $ 0.08 RJ
Planet mass $ M_{\rm p} $ $ 1.07 ^{\rm + 0.13}_{- 0.18} $   1.03 $\pm $ 0.12 MJ
Planet density $ \rho_{\rm p} $ $0.350^{\rm +0.077}_{-0.042}$   $0.31 \pm 0.06$ $\rho_{J}$
The parameters A, B, and C are the zero-, first- and second-order coefficients of the polynomial used to model the photometric trend. The values and error bars used in the Bayesian penalties are shown in the third column. Fourth column shows the values presented in B08.

Source LaTeX | All tables | In the text

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