Fig. 1.
Top: L-S periodogram for the Lick data. The most significant peak is at a period of 587.84 d with a FAP of 1.6 × 10−17. Middle: L-S periodogram for the H15 data. The most significant period is 629.08 d and has a FAP of less than 10−41. Bottom: L-S periodogram for the Lick data combined with the data of H15. The most significant peak is found at a period of 625.02 d with a FAP of less than 10−41. In all three panels, the significance thresholds represented by the vertical dashed lines correspond to FAPs of 0.1%, 1%, and 5%, respectively.
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