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Fig. 1
Initial 60Fe/26Al mass ratio of supernovae for progenitor masses varying from 20 to 60 M⊙ (Woosley & Heger 2007) and corresponding to the range of stellar masses that have been considered by modelers (see text). The solar system initial mass ratio (60Fe/26Al)0 = 3.9 × 10-3 is shown for comparison.
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