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Fig. 12
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Periodograms of SPIRou ancillary LBL data (three middle rows), spectral window (bottom row), Bℓ, and RV residuals (top row) for GJ 876. The red zone shows the rotation period (Donati et al. 2023) and its 3σ range. The first two harmonics of the rotation period are indicated as dotted red lines.
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