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Table 2.

Systemic, primary, and secondary parameters of KIC9850387, derived through a combination of atmospheric (see Sect. 3.3) and eclipse modelling (see Sect. 4.1).

Parameter Systemic
Porb (d) *2.7484939
ω0 (°) *270
T0 (d) *2454956.4185
e *0.0030
i (°) *82.21
vγ (km s−1) *5.54
[M/H] (dex) −0.11

Parameter Primary Secondary

M (M) *1.66 1.062
R (R) *2.154 *1.081
Teff (K) 7335 *6160
log g (dex) 3.992 4.396
vmicro (km s−1) 2.4
vrot sin i (km s−1) 13.4
frot, surf (d−1) 0.122
K (km s−1) *88.7 *138.9
Irefl *0.5 *0.3
β *0.46 *0.8
Lr *0.893 0.107

Notes. The errors quoted are based on the 68% confidence intervals of the fit parameters. Free parameters in eclipse modelling are indicated by *. Systemic parameters – Porb: Orbital Period; ω0: Argument of periastron; T0: Time of superior conjunction; e: Orbital eccentricity; i: Orbital inclination; vγ: Systemic velocity; [M/H]: Metallicity. Primary and Secondary component parameters – M: Mass; R: Equivalent radius (the radius that each star would have if it was a perfect sphere); log g: Logarithm of the surface gravity; vmicro: Microturbulent velocity; vrot sin i: Projected rotational velocity; frot,surf: Surface rotational frequency; K: Radial velocity semi-amplitude; Teff: Effective temperature; Irefl: Fraction of incident radiation that is reflected by the star; β: Gravity darkening exponent (the gravity darkening exponent determines the degree to which the temperatures (and therefore fluxes) of each surface element of the PHOEBE2.0 model are affected by the surface gravity at that element, according to the relation Teff ∝ gβ/4. See Prša et al. (2016) for a detailed description of its implementation in PHOEBE2.0); Lr: Light contribution of the star with respect to the total flux.

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