Table 1
Physical and orbital parameters of MASCARA-2b.
| Description | Symbol | Value |
|---|---|---|
| Stellar parameters | ||
| Identifiers | – | KELT-20, HD 185603 |
| V -band magnitude | mV | 7.6 |
| Effective temperature | Teff |  |
| Projected rotation speed | v sin i⋆ | 114 ± 3 km s−1 |
| Surface gravity | log g | 4.31 ± 0.02 cgs |
| Metallicity | [Fe/H] | − 0.02 ± 0.07 |
| Stellar mass | M⋆ |  |
| Stellar radius | R⋆ | 1.60 ± 0.06 R⊙ |
| Planet parameters | ||
| Planet mass(a) | Mp | <3.510 MJup |
| Planet radius | Rp | 1.83 ± 0.07 RJup |
| Equilibrium temperature | Teq | 2260 ± 50 K |
| Surface gravity(a) | log gP | <3.460 cgs |
| System parameters | ||
| Right ascension | – | 19h38m38.73s |
| Declination | – | +31o13’09.2” |
| Epoch | Tc |  |
| Period(a) | P | 3.4741070 ± 0.0000019 days |
| Transit duration(a) | T14 |  |
| Ingress/Egress duration(a) | τ |  |
| Semimajor axis(a) | a |  |
| Inclination(a) | i |  |
| Eccentricity | e | 0 (fixed) |
| Systemic velocity | γ | − 21.07 ± 0.03 km s−1 |
| Projected obliquity | λ | 0.6 ± 4 deg |
References. (a) From Lund et al. (2017). All the remaining parameters are taken from Talens et al. (2018).
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