Comparison of the methods for experiment with set-up 2. Panels a and b: data points with black crosses, red continuous curve indicate the BGLST model, and the blue dashed line indicates the LS model fit. Panels c and d: spectra of the models with same colours and line styles. The vertical lines correspond to the optimal frequencies found and the black dotted line shows the true frequency. The plots on two columns correspond to the biggest difference in the period estimates from both methods w.r.t. each other. On the left the BGLST method outperforms the LS method, and on the right vice versa.