Confidence levels for inclination, Sum of the fractional radii and temperature ratio derived from the VR_CI_C light curves. Top panel: from the center the 1-, 2-, 3- and 5-σ contours of the inclination of the eclipsing binary orbit and the temperature ratio (T_eff, 2/T_eff, 1). The confidence levels were determined from the exploration of the χ²–space, and the best-fit solution to the RV and VR_CI_C light curves is the one with the lowest χ² (marked by the red diamond in both panels). Bottom panel: sum of the fractional radii (i.e., r₁ + r₂) as a function of the inclination angle. The contours represent the same confidence levels as in the top panel.