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Table 3
Parameters of the KELT-9b system.
| Parameter | Symbol [unit] | Value(a) |
|---|---|---|
| The star | ||
| Effective temperature | Teff[K] | 10 170 ± 450 |
| Radius | R⋆ [R⊙] | 2.362 |
| Mass | M⋆ [M⊙] | 2.52 |
| Metallicity | [Fe/H] [dex] | −0.03 ± 0.2 |
| Rotational velocity | v sin i⋆ [km s−1] | 111.4 ± 1.3 |
| Systemic velocity | vsys [km s−1] | −20.6 ± 0.1 |
| The planet | ||
| Radius | Rp [RJ] | 1.891 |
| Mass | Mp [MJ] | 2.88 ± 0.84 |
| Orbital semi-major axis | a [R⋆] | 3.15 ± 0.09 |
| Orbital period | P [d] | 1.4811235 |
| Transit epoch (BJD) | T0 [d] | 2 457 095.68572 |
| Transit depth | δ [%] | 0.68 |
| RV semi-amplitude | Kp [km s−1] | 254 |
| Equilibrium temperature | Teq [K] | 4050 ± 180 |
| Orbital inclination | i [deg] | 86.79 ± 0.25 |
| Spin-orbit inclination | λ [deg] | −84.8 ± 1.4 |
Notes. (a) All the parameters are adopted from Gaudi et al. (2017).
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