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| Paper: |
The Wavelength Dependence of Solar Irradiance Variations |
| Volume: |
154, Cool Stars, Stellar Systems and the Sun: Tenth Cambridge Workshop |
| Page: |
700 |
| Authors: |
Unruh, Yvonne C.; Solanki, Sami K. |
| Abstract: |
The observed irradiance variations over a solar cycle show a strong wavelength dependence; the variations are strongest in the UV and very weak in the visible. Here we present a simple model of the spectral dependence of the solar irradiance. We can exclude models that postulate a change in the effective temperature of the Sun or of parts of the Sun. However, we find that the observed irradiance variations can be matched with a model that includes the different temperature stratification of the quiet photosphere, the faculae and the sunspots. |
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