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Fig. 2

image

Time series of X-ray luminosity and chromospheric S-index for ι Hor. The dashedline indicates the cycle calculated using just coronal X-ray data (period of 588.5 d). The error bars of coronal X-ray luminosity are based on the standard deviation within each snapshot. Chromospheric data from SSM13 and Alvarado-Gómez et al. (2018b).

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