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Table 2
System parameters for WASP-43.
| Stellar parameters from spectroscopic analysis | |||
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| RA = 10h19m38.01s, Dec = –09°48′22.5′′ (J2000) | |||
| V mag | 12.4 | Spectral type | K7V |
| Teff (K) | 4400 ± 200 | log g | 4.5 ± 0.2 |
| ξt (km s-1) | 0.5 ± 0.3 | v sinI (km s-1) | 4.0 ± 0.4 |
| [Fe/H] | −0.05 ± 0.17 | [Na/H] | 0.57 ± 0.18 |
| [Al/H] | 0.30 ± 0.12 | [Si/H] | 0.01 ± 0.20 |
| [Ca/H] | 0.19 ± 0.21 | [Sc/H] | 0.06 ± 0.16 |
| [Ti/H] | 0.20 ± 0.21 | [V/H] | 0.42 ± 0.25 |
| [Cr/H] | −0.03 ± 0.21 | [Mn/H] | 0.36 ± 0.18 |
| [Co/H] | 0.24 ± 0.05 | [Ni/H] | 0.08 ± 0.20 |
| log A(Li) | <0.2 ± 0.3 | Distance | 80 ± 20 pc |
| Parameters from MCMC analysis | |||
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| P (d) | 0.813475 ± 0.000001 | ||
| Tc (HJD) (UTC) | 2 455 528.86774 ± 0.00014 | ||
| T14 (d) | 0.0483 ± 0.0011 | ||
| T12 = T34 (d) | 0.0110 ± 0.0017 | ||
 / |
0.0255 ± 0.0012 | ||
| b | 0.66 |
||
| i (°) | 82.6 |
||
| K1 (m s-1) | 550.3 ± 6.7 | ||
| γ (m s-1) | –3594.6 ± 1.0 | ||
| e | 0 (adopted) (<0.04 at 3σ) | ||
| M∗ (M⊙) | 0.58 ± 0.05 | ||
| R ∗ (R⊙) | 0.60 |
||
| log g ∗ (cgs) | 4.65 |
||
| ρ ∗ (ρ⊙) | 2.70 |
||
| MP (MJup) | 1.78 ± 0.10 | ||
| RP (RJup) | 0.93 |
||
| log gP (cgs) | 3.672 |
||
| ρP (ρJ) | 2.21 |
||
| a (AU) | 0.0142 ± 0.0004 | ||
| TP,A = 0 (K) | 1370 ± 70 | ||
| Alternative parameters (see text) | |||
| M∗ (M⊙) | 0.71 ± 0.05 | ||
| R∗ (R⊙) | 0.67 ± 0.04 | ||
| ρ∗ (ρ⊙) | 2.35 ± 0.35 | ||
| MP (MJup) | 2.0 ± 0.1 | ||
| RP (RJup) | 1.06 ± 0.05 | ||
Notes. Errors are 1σ; Limb-darkening coefficients were: (EulerCAM) a1 = 0.694, a2 = –0.695, a3 = 1.368, a4 = –0.527. (TRAPPIST) a1 = 0.748, a2 = –0.697, a3 = 1.103, a4 = –0.438.
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