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Table 4
System parameters for WASP-90.
1SWASP J210207.70+070323.7 | |
2MASS 21020767+0703224 | |
RA = 21h02m07.70s, Dec = +07°03′23.7′′ (J2000) | |
V mag = 11.7 | |
Rotational modulation <1 mmag (95%) | |
pm (RA) −10.2 ± 1.4 (Dec), 8.1 ± 4.3 mas/yr | |
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Stellar parameters from spectroscopic analysis | |
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Spectral type | F6 |
Teff (K) | 6440 ± 130 |
log g | 4.32 ± 0.09 |
ξt (km s-1) | 1.3 ± 0.2 |
vmac(km s-1) | 4.7 ± 0.3 |
v sinI (km s-1) | 6.0 ± 0.5 |
[Fe/H] | +0.11 ± 0.14 |
log A(Li) | <1.7 |
Distance (pc) | 340 ± 60 |
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Parameters from MCMC analysis | |
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P (d) | 3.916243 ± 0.000003 |
Tc (HJD) (UTC) | 245 6235.5639 ± 0.0005 |
T14 (d) | 0.1398 ± 0.0022 |
T12 = T34 (d) | 0.033 ± 0.003 |
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0.0071 ± 0.0002 |
b | 0.841 ± 0.013 |
i (°) | 82.1 ± 0.4 |
K1 (km s-1) | 0.060 ± 0.006 |
γ (km s-1) | 4.361 ± 0.0003 |
e | 0 (adopted) (<0.5 at 3σ) |
M∗ (M⊙) | 1.55 ± 0.10 |
R∗ (R⊙) | 1.98 ± 0.09 |
log g∗ (cgs) | 4.033 ± 0.029 |
ρ∗ (ρ⊙) | 0.20 ± 0.02 |
Teff (K) | 6430 ± 130 |
MP (MJup) | 0.63 ± 0.07 |
RP (RJup) | 1.63 ± 0.09 |
log gP (cgs) | 2.73 ± 0.06 |
ρP (ρJ) | 0.145 ± 0.027 |
a (AU) | 0.0562 ± 0.0012 |
TP,A = 0 (K) | 1840 ± 50 |
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Errors are 1σ; Limb-darkening coefficients were: | |
TRAPPIST I + z: | |
a1 = 0.554, a2 = 0.041, a3 = 0.070, a4 = –0.086 | |
EulerCAM rG: | |
a1 = 0.476, a2 = 0.422, a3 = –0.226, a4 = 0.020 |
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