2011/04/02 by Camille Charignon, M. Kostka, Mathew Kostka +3 · 1 citation
Physics and Astronomy · #Astrophysics #Computational science #Computer science #Ejecta #Gamma-ray bursts and supernovae #Java #Nuclear physics research studies #Nucleosynthesis #Operating system #Physics #Pulsars and Gravitational Waves Research #Source code #Supernova #astro-ph.HE #nucl-th #r-process
paper · pdf · doi:10.1051/0004-6361/201117008
12 journal pages, 10 figures. The code (r-Java), manual, video tutorial and examples (project files) can be accessed at : http://quarknova.ucalgary.ca/software/rJava/
arxiv created 2011/04/02 · openalex publication_date 2011/05/25 · arxiv updated 2015/05/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present r-Java, an r-process code for open use that performs r-process nucleosynthesis calculations. Equipped with a simple graphical user interface, r-Java is capable of carrying out nuclear statistical equilibrium (NSE), as well as static and dynamic r-process calculations, for a wide range of input parameters. In this introductory paper, we present the motivation and details behind r-Java and results from our static and dynamic simulations. Static simulations are explored for a range of neutron irradiation and temperatures. Dynamic simulations are studied with a parameterized expansion formula. Our code generates the resulting abundance pattern based on a general entropy expression that can be applied to both degenerate and non-degenerate matter, allowing us to track the rapid density and temperature evolution of the ejecta during the initial stages of ejecta expansion. At present, our calculations are limited to the waiting-point approximation. We encourage the nuclear astrophysics community to provide feedback on the code and related documentation, which is available for download from the website of the Quark-Nova Project: http://quarknova.ucalgary.ca/.