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∗ |
|
– |
Notes.
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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