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Fig. 1


Template light curves for the four thermonuclear supernova types at z = 0.5. The upper panel shows the R light curve for the Ia-normal subtype as solid (black), the Ia-faint subtype as dash-dotted (blue), the 91T-like subtype as dotted (green) and the 91bg-like subtype as dashed (cyan). In the lower panel the RI colour evolution for the four subtypes is shown using the same line styles (this figure is available in colour in the electronic version of the article).

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