论文标题
构建具有多变态关系的现实恒星模型
Construct a realistic stellar model with polytropic relation
论文作者
论文摘要
这项研究的目的是构建具有非均匀多环形指数的简单恒星模型。我们发现，emden方程无法在真实恒星中使用不均匀的多粒子指数来处理多质气体球，然后我们构建了现实的恒星模型。关键点是，由于多面关系的本质，我们应该解决两个独立方程的密度和压力，而不是结合了静液压平衡和多面关系的emden方程。我们以阳光进行计算示例，发现与MESA代码相比，这种简单模型的结果相当不错。与标准恒星模型相比，这种简单模型的优点在于其状态方程要简单得多。
The aim of this study is to construct a simple stellar model with non-uniform polytropic index. We find that the Emden equation cannot deal with the polytrope gas sphere with non-uniform polytropic index in a real star, and then we construct a realistic stellar model. The key point is that we should solve the two independent equations for density and pressure due to the essence of polytropic relation, but not the Emden equation which combines the hydrostatic balance and polytropic relation. We take the Sun for a computational example to find that this simple model yields quite a good result compared to the MESA code. The advantage of this simple model lies in its much simpler equation of state than that in the standard stellar model.
