Spectral light curves with the central wavelengths marked and a linear trend in time removed

Spectral light curves with the central wavelengths marked and a linear trend in time removed. Left panel: Light curves fitted with the simple white noise model. Middle panel: Residuals from the white noise fits. Right panel: Identical light curves as left panel with their best fit Gaussian Processing (GP) model in red. The grey shading represents the 1 and 2 σ limits of the GP model (including white noise).