The Nuclear Reaction Network WinNet

Reichert, M.; Winteler, C.; Korobkin, O.; Arcones, A.; Bliss, J.; Eichler, M.; Frischknecht, U.; Fröhlich, C.; Hirschi, R.; Jacobi, M.; Kuske, J.; Martínez-Pinedo, G.; Martin, D.; Mocelj, D.; Rauscher, T.; Thielemann, F.-K.

Abstract

We present the state-of-the-art single-zone nuclear reaction network WinNet, which is capable of calculating the nucleosynthetic yields of a large variety of astrophysical environments and conditions. This ranges from the calculation of the primordial nucleosynthesis, where only a few nuclei are considered, to the ejecta of neutron star mergers with several thousands of involved nuclei. Here we describe the underlying physics and implementation details of the reaction network. We additionally present the numerical implementation of two different integration methods, the implicit Euler method and Gears method, along with their advantages and disadvantages. We furthermore describe basic example cases of thermodynamic conditions that we provide together with the network and demonstrate the reliability of the code by using simple test cases. With this publication, WinNet will be publicly available and open source at GitHub and Zenodo.

Citation

Reichert, M., Winteler, C., Korobkin, O., Arcones, A., Bliss, J., Eichler, M., …Thielemann, F. (2023). The Nuclear Reaction Network WinNet. The Astrophysical Journal Supplement, 268(2), Article 66. https://doi.org/10.3847/1538-4365/acf033

• Journal Article Type: Article
• Acceptance Date: Aug 11, 2023
• Online Publication Date: Oct 11, 2023
• Publication Date: Oct 1, 2023
• Deposit Date: Oct 17, 2023
• Publicly Available Date: Oct 17, 2023
• Journal: The Astrophysical Journal Supplement Series
• Electronic ISSN: 1538-4365
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 268
• Issue: 2
• Article Number: 66
• DOI: https://doi.org/10.3847/1538-4365/acf033
• Keywords: Nuclear astrophysics, Nuclear reaction cross sections, Computational methods, Nucleosynthesis