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Table 5

Stellar and planetary parameters for WASP-23 derived from light curve and RV fits to the GROND photometry and RV measurements from Triaud et al. (2011).

Quantity Symbol This work Triaud et al. (2011)

Stellar parameters
Mass (M) M
Radius (R) R
Luminosity (L) L
Density (cgs) ρ
Surface gravity (cgs) log (g) 4.4 ± 0.2
Effective temperature (K) T eff 5150 ± 100
Metallicity [Fe/H] − 0.05 ± 0.13

Planetary parameters
Semi-major axis (AU) a
Mass (  MJ) M P
Radius (  RJ) R P
Density (cgs) ρ P
Surface gravity log (gP)
Equilibrium temperaturea (K) T eq
Safronov Number Θ
Incident flux (109 erg s-1 cm-2) ⟨ F ⟩
Orbital period (day) P 2.9444300 ± 0.0000011
Reference transit time (BJD) T 0 2   454   813.68159 ± 0.00042

RV parameters
RV semi-amplitude (m/s) K
Mass ratio MP/M



Assuming a little redistribution over the surface of the planet, i.e., the area that is reemitting with average temperature Teq is , as in Hansen & Barman (2007).

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