Left panels: Light curves of LC_1, 0(t) (in blue) and LC_2, 0(t) (in red) (top left panel); LC₁(t) (in blue) and LC₂(t) (in red) (middle left panel); and Color(t) (bottom left panel). Right panels: Corresponding LS powers. In the top right panel (middle right panel), the solid line in blue and red show the results through LC_1, 0(t) (LC₁(t)) and LC_2, 0(t) (LC₂(t)), respectively. In each right panel, the horizontal dashed red line marks the 5σ significance level (determined by the input false alarm probability to be 3 × 10⁻⁷); the vertical dashed red line marks the position of periodicity around 812 days determined in LC₁(t).