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Fig. 4


Hardness ratios of the gamma-ray emission from the delayed detonation (red) and the violent merger model (dashed black). The ratio H1 = C1/L1 is shown on the left, the ratio H2 = L1/L2 is displayed on the right. To illustrate the sensitivity to viewing-angle effects, H1 is shown for different lines of sight in the left panel.

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