r-Java：重元素核合成的r-过程代码和图形用户界面
r-Java : An r-process Code and Graphical User Interface for Heavy-Element Nucleosynthesis
摘要：
我们提出的R-Java，一个R-过程代码开放使用，进行R-过程核合成计算。配备了简单的图形用户界面，r-Java能够进行核统计平衡（NSE）以及静态和动态的r-过程计算的广泛的输入参数。在这篇介绍性的论文中，我们介绍了r-Java背后的动机和细节，以及静态和动态模拟的结果。静态模拟探讨了一系列的中子辐照和温度。采用参数化展开公式进行了动力学仿真。我们的代码生成的丰度模式的基础上，可以适用于退化以及非退化物质的一般熵表达式，使我们能够跟踪喷出物膨胀的初始阶段的喷出物的快速密度和温度演变。目前，我们的计算仅限于等待点近似。我们鼓励核天体物理学社区对代码和相关文档提供反馈，这些代码和文档可从Quark-Nova项目的网站下载：http://quarknova.ucalgary.ca/
英文摘要：
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 degenerate as well as 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/
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