Frequency spectrum of the residual TESS light curve after subtracting all significant coherent signals and rejecting data close to the periastron passages. The black solid line represents the best-fit model given by Eq. (1). The stochastic component of the model is denoted with a red dotted line while the horizontal blue dashed line corresponds to the white noise level. The two gaps in the data above 10 d⁻¹ correspond to the location of aliases around the even multiples of the Nyquist frequency that we removed before the fit.