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arXiv · 1803.08335

Treatment of isomers in nucleosynthesis codes

René Reifarth·Stefan Fiebiger·Kathrin Göbel·Tanja Heftrich·Tanja Kausch·Christoph Köppchen·Deniz Kurtulgil·Christoph Langer·Benedikt Thomas·Mario Weigand
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Abstract

The decay properties of long-lived excited states (isomers) can have a significant impact on the destruction channels of isotopes under stellar conditions. In sufficiently hot environments, the population of isomers can be altered via thermal excitation or de-excitation. If the corresponding lifetimes are of the same order of magnitude as the typical time scales of the environment, the isomers have to be the treated explicitly. We present a general approach to the treatment of isomers in stellar nucleosynthesis codes and discuss a few illustrative examples. The corresponding code is available online at http://exp-astro.de/isomers/

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René Reifarth, Stefan Fiebiger, Kathrin Göbel, Tanja Heftrich, Tanja Kausch, Christoph Köppchen, Deniz Kurtulgil, Christoph Langer, Benedikt Thomas, Mario Weigand. 2018-03-22. Treatment of isomers in nucleosynthesis codes. https://doi.org/10.1142/s0217751x1843011x

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