Once the multi-zone nucleosynthesis results are available, make the data for Figure 6. To do so, change into your data directory and retrieve the 15N mass fraction as a function of interior mass coordinate:
This creates a text file n15_0.4e51_reference.txt, which contains in column 1 the zone label and in column 2 the final 15N mass fraction in the zone for the E = 0.4 B multi-zone nucleosynthesis calculation. Repeat for the other explosion energies.
Once these output text files are available, plot column 2 of them versus column 2 of mass_pre.txt (divided by 1.9891 × 1033 to convert grams to solar masses) that you previously created. Add the curves for the pre-supernova and post-supernova 15N mass fractions.