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Fig. D.1


Spectral evolution of the γ-ray emissivities relative to the local ISM qLIS. The light grey crosses correspond to the optically thin spectrum and the black crosses to the 100 K case, favoured by the fit. The corresponding bands give the average emissivity and its errors. The qCO coefficients are expressed in 1020 cm−2 K−1 km−1 s, qH II in 1020 cm−2, qDNM in 1025 cm−2. The other q coefficients are simple normalisation factors.

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