Table 4
Best-fitting and derived stellar, planetary, and system parameters for MASCARA-3.
Parameter | Value | Section |
---|---|---|
Fitting parameters | ||
Quadratic limb darkening (MASCARA), (c1, c2) | (0.40 ± 0.07, 0.31 ± 0.07) | 4.1 |
Systemic velocity, γ (km s−1) | − 5.63 ± 0.01 | 4.1 |
Linear trend in RV, ![]() |
61 ± 19 | 4.1 |
Orbital period, P (days) | 5.55149 ± 0.00001 | 4.1 |
Time of mid-transit, T0 (BJD) | 2458268.455 ± 0.002 | 4.1 |
Scaled planetary radius, Rp∕R⋆ | 0.092 ± 0.003 | 4.1 |
Scaled orbital distance, a∕R⋆ | 9.5 ± 0.2 | 4.1 |
RV semi-amplitude, K⋆ (m s−1) | 415 ± 13 | 4.1 |
![]() |
![]() |
4.1 |
![]() |
0.20 ± 0.04 | 4.1 |
cosi | ![]() |
4.1 |
Jitter term phot., σjit,p | 0.0021 ± 0.0001 | 4.1 |
Jitter term RV, σjit,RV (km s−1) | 0.060 ± 0.008 | 4.1 |
Quadratic limb darkening (SONG), (c1,s, c2,s) | (0.66 ± 0.09, 0.40 ± 0.09) | 4.2.1 |
Microturbulence, β (km s−1) | 4.3 ± 0.6 | 4.2.1 |
Macroturbulence, ζ (km s−1) | 9.4 ± 0.4 | 4.2.1 |
Proj. rotation speed (BF), v sin i⋆ (km s−1) | 20.4 ± 0.4 | 4.2.2 |
Jitter term RM out of transit, σjit,out (m s−1) | 0.003 ± 0.002 | 4.2.1 |
Proj. rotation speed (grid), v sin i⋆ (km s−1) | 20.9 ± 3.2 | 4.2.2 |
Projected obliquity (grid), λ (deg) | 17.8 ± 20.0 | 4.2.2 |
Impact parameter (grid), b | 0.30 ± 0.16 | 4.2.2 |
3D rotation angles (deg) | (− 1.4, −0.01, 0.002) | 4.2.2 |
Proj. rotation speed (RV-RM), v sin i⋆ (km s−1) | 20.3 ± 0.4 | 4.3 |
Projected obliquity (RV-RM), λ (deg) | ![]() |
4.3 |
Impact parameter (RV-RM), b | 0.39 ± 0.08 | 4.3 |
RV offset on May 29, 2018, γRM (km s−1) | − 15.181 ± 0.010 | 4.3 |
Derived parameters (from the results in Sect. 4.1) | ||
Orbital eccentricity, e | ![]() |
|
Argument of periastron, ω (deg) | ![]() |
|
Orbital inclination, i (deg) | ![]() |
|
Impact parameter, b | 0.40 ± 0.10 | |
Total transit duration, T14 (h) | 4.55 ± 0.20 | |
Full transit duration, T23 (h) | 3.65 ± 0.23 | |
Semi-major axis, a (au) | 0.067 ± 0.002 | |
Planetary mass, Mp (MJup) | 4.2 ± 0.2 | |
Planetary radius, Rp (RJup) | 1.36 ± 0.05 | |
Planetary mean density, ρp (g cm−3) | 2.3 ± 0.3 | |
Equilibrium temperature, Teq (K) | 1473 ± 28 |
Notes. The parameters are extracted from the joint analysis of the photometry and RV (Sect. 4.1), the analysis of the mean out-of-transit BF (Sect. 4.2.1), the analysis of the grid of the shifted and binned Doppler shadow residuals (Sect. 4.2.2), and the analysis of the extracted RVs from the spectroscopic transit on the night of May 29, 2018 (Sect. 4.3).
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