Revisiting the Question: The Cause of the Solar Cycle Variation of Total Solar Irradiance

<div>The three solar indices: daily ACRIM TSI (top panel), daily sunspot area (middle panel), and daily Mg II core-to-wing ratio (bottom panel) from 1978 November 17 to 2011 April 29.</div>

Advances in Astronomy

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Figure 1

Figure 1: Revisiting the Question: The Cause of the Solar Cycle Variation of Total Solar Irradiance 