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Fig. 5.

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Phase-fitting of the 3846.15 s period of Bao et al. (2023), where each data point corresponds to a duration of one orbital cycle (i.e. 8649 s). The phases are highly scattered up to almost 40% of the period, suggesting that this period is spurious and/or not coherent. The black solid and stepped lines mark the best fit linear component and its 1σ uncertainty, respectively.

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