The dependence of the [FUV-MUV] colour on solar cycle | Journal of Space Weather and Space Climate

Brightness Variations of the Sun and Sun-like Stars and Resulting Influences on their Environments

Open Access

Fig. 5.

Scatter plot between the [FUV-MUV] colour index (normalized arbitrary units) and Mg II index (normalized arbitrary units) reconstructed after removing the IMFs representing the 11-year signal. The correlation implies that even at the shortest temporal scales the FUV flux variability dominates the MUV one when the solar activity increases. Time is represented as in Figure 1.

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