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Fig. 3.
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SMW derived from the HIRES and HARPS spectra. The solid line shows the least-square fit with a harmonic function of periods 1745 ± 114 days and 5369 ± 787 days, derived from the GLS periodogram in Fig. 2, with a Pearson correlation coefficient of 0.65 and a p-value ≤10−4. The shaded region represents ±3σ deviations.
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