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Table 1
Summary of the stellar and planetary parameters of the WASP-172 system adopted in this study.
| WASP-172 System parameters | ||
|---|---|---|
| RA2000 | 13:17:44 | [2] |
| Dec2000 | −47:14:15 | [2] |
| Parallax p [mas] | 1.8942 ± 0.0222 | [2] |
| Magnitude [Vmag] | 11.0 | [2] |
| Systemic velocity (vsys) [km s−1] | −20.283 ± 0.006 | [1] |
| Stellar parameters | ||
| Star radius (R*) [R⊙] | 1.91 ± 0.10 | [1] |
| Star mass (M*) [M⊙] | 1.49 ± 0.07 | [1] |
| Proj. rot. velocity (v sin i) [km s−1] | 13.7 ± 1.0 | [1] |
| Age [Gyr] |  |
[1] |
| Metallicity [Fe/H] | −0.10 ± 0.08 | [1] |
| Planetary parameters | ||
| Planet radius (Rp) [RJup] | 1.57 ± 0.10 | [1] |
| Planet mass (Mp) [MJup] | 0.47 ± 0.10 | [1] |
| Eq. temperature (Teq) [K] | 1740 ± 60 | [1] |
| Density (ρ) [g cm−3] | 0.16 ± 0.05 | [1] |
| Surface gravity (log ɡp) [cgs] | 0.12 ± 0.04 | [1] |
| Orbital and transit parameters | ||
| Transit centre time (T0) [HJD (UTC)] | 2457032.2617 ± 0.0005 | [1] |
| Orbital semi-major axis (a) [au] | 0.06940 ± 0.00001 | [1] |
| Scaled semi-major axis (a/R*) | 8.0 ± 0.5 | [1] |
| Orbital inclination (i) [°] | 86.7 ± 1.1 | [1] |
| Projected orbital obliquity (λ) [°] | 121 ± 13 | [3] |
| Eclipse duration (T14) [h] | 5.294 ± 0.048 | [1] |
Radius ratio ( ) |
0.0072 ± 0.0002 | [1] |
| RV semi-amplitude (K) [km s−1] | 0.042 ± 0.009 | [1] |
| Period (P) [d] | 5.477433 ± 0.000007 | [1] |
| Eccentricity |  |
[1] |
| Derived parameters | ||
| Planetary orbital velocity (vorb) [km s−1] | 137.8 ± 2.2 | |
| Approx. scale height (H) [km] | 1631 ± 56 | |
| Transit depth of H (δF/F) [×10−5] | 20.9 ± 2.7 | |
References: [1] Hellier et al. (2019), [2] Gaia Collaboration (2020), [3] Knudstrup et al. (in prep.).
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