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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.

Authors

M. Reichert

C. Winteler

O. Korobkin

A. Arcones

J. Bliss

M. Eichler

U. Frischknecht

C. Fröhlich

M. Jacobi

J. Kuske

G. Martínez-Pinedo

D. Martin

D. Mocelj

T. Rauscher

F.-K. Thielemann



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.

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

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