Table 5
System parameters of the WASP-43 system.
| Parameter | Symbol | Value | Note |
|
|
|||
| Transit parameters | |||
| Orbital period [days] | P | 0.81347437 ± 0.00000013 | A |
| Mid-transit time [BJDTDB] | T 0 | 2 455 934.792239 ± 0.000040 | A |
| Planet/star radius ratio | Rp/R⋆ | 0.15743 ± 0.00041 | B |
| Orbital inclination [deg] | i | 82.64 ± 0.19 | B |
| Scaled semi-major axis | a/R⋆ | 4.967 ± 0.050 | B |
| Transit duration [days] | T 14 | 0.05115 ± 0.00022 | D |
| Ingress/egress duration [days] | T12 = T34 | 0.01103 ± 0.00025 | D |
| Transit impact factor | b = acosi/R⋆ | 0.636  |
D |
|
|
|||
| Occultation parameters | |||
| Mid-occultation time [BJDTDB] | T occ | 2 455 989.6943  |
C |
| Planet-to-star flux ratio in K-band [%] | Fp/F⋆ | 0.197 ± 0.042 | C |
| Planet-to-star flux ratio in i′-band [%] | Fp/F⋆ | 0.037  |
C |
|
|
|||
| Other orbital parameters | |||
| Orbital eccentricity | e | 0. (fixed) | G |
| Argument of periastron [°] | ω | 0. (fixed) | G |
| Orbital semi-major axis [AU] | a | 0.01524 ± 0.00025 | F |
| Roche limit [AU] | a R | 0.00749 ± 0.00012 | F |
|
|
|||
| Stellar parameters | |||
| Mass [M⊙] | M ⋆ | 0.713  |
E |
| Radius [R⊙] | R ⋆ | 0.660  |
F |
| Density [ρ⊙] | ρ ⋆ | 2.482  |
D |
| Surface gravity [cgs] | log g⋆ | 4.652 ± 0.006 | F |
| Effective temperature [K] | T eff | 4536  |
E |
| Metallicity [dex] | [Fe/H] | 0.01  |
E |
| Age [Gyr] | t age | 4.4  |
E |
|
|
|||
| Planetary parameters | |||
| Mass [MJup] | M p | 2.029  |
F |
| Radius [RJup] | R p | 1.034 ± 0.014 | F |
| Density [g cm-3] | ρ p | 2.434  |
F |
| Surface gravity [cgs] | log gp | 3.692 ± 0.009 | D |
| Equilibrium temperature (AB = 0, f = 1/4) [K] | T eq | 1439  |
D |
| Equilibrium temperature (AB = 0, f = 1/2) [K] | T eq | 1712  |
D |
| Equilibrium temperature (AB = 0, f = 2/3) [K] | T eq | 1839  |
D |
| Brightness temperature in K-band [K] | T B,K | 1878  |
D |
| Brightness temperature in i′-band [K] | T B,i′ | 2225  |
D |
| Incident flux [109 erg s-1 cm-2] | ⟨ F ⟩ | 0.973  |
D |
| Safronov number | Θ | 0.0873  |
D |
Notes. A: determined from linear regression of timing data listed in Table 4; B: determined from our global joint analysis of the seven-band transit light curves (for detail, see Table 3); C: determined from our analysis of the K- or i′-band occultation light curves; D: derived from the PDF of group B or C using theoretical formulae; E: derived from the evolutionary tracks analysis using PDF from group B; F: derived from the PDF of group B and E using theoretical formulae; G: both are fixed as 0 in our analysis of transit light curves.
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