Fig. 2: 60Fe production in massive star simulations.

a Calculation of a 15\({M}_{\odot }\) star, and b of a 20\({M}_{\odot }\) star. The green solid line represents calculations done using the default MACS for the 59Fe(n,γ)60Fe reaction46, while the blue dot-dashed and yellow dashed lines show the results using the upper and lower limits from the present work.