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Fig. 3


Spectra of pion decay (top), Bremsstrahlung (middle), and inverse-Compton (bottom) emission for a star-forming disk galaxy with (Rmax, zmax) = (10 kpc, 2 kpc) and a 46 kpc ring distribution of molecular gas. The solid, dashed, and dot-dashed curves correspond to nH2 = 5, 50, and 500 H2 cm-3, respectively. For the leptonic processes, the contribution from primary electrons and secondary positrons are shown. In all plots, the total γ-ray emission from all processes and all particles is shown in black.

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