Fig. 7
Comparison between Ca II H&K chromospheric emission flux at 1 AU calculated from
employing the method described in Sect. 4 and that used in Linsky et al. (2013). The dashed red line represents the linear relation. We observe that the method described in Sect. 4 overestimates the Ca II H&K chromospheric emission flux as compared to those provided in Linsky et al. (2013).
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