论文标题
光电离代码的当前和未来开发多云
Current and future development of the photoionization code Cloudy
论文作者
论文摘要
星际培养基中存在的气体通常与（局部）热力学平衡相距很远，在某些情况下也可能不在稳态平衡中，周围环境。该材料的物理学很复杂，需要一个复杂的数值代码来研究它。为此，创建了开源光电离心代码。它对气体的物理状态进行建模，并预测其发出的频谱。 不断开发多云，以改善其使用的微物理过程和基本数据数据库的处理。在本文中，我们将讨论如何通过为所有离子实施更好的碰撞模型来开发代码以改善高密度预测。我们还将简要讨论多云中的实验模式，以模拟不处于稳态平衡的气体，并在冷却轨道上的行星星云中提出了重组气体的初步模型。我们简要讨论了如何使用并行化加速代码。
The gas that is present in the interstellar medium is usually very far removed from (local) thermodynamic equilibrium, and in some cases may also not be in a steady-state equilibrium with its surroundings. The physics of this material is complex and one needs a sophisticated numerical code to study it. For this purpose the open-source photoionization code Cloudy was created. It models the physical state of the gas and predicts the spectrum that it emits. Cloudy is continually being developed to improve the treatment of the microphysical processes and the database of fundamental data that it uses. In this paper we will discuss how we are developing the code to improve our high-density predictions by implementing better collisional-radiative models for all ions. We will also briefly discuss the experimental mode in Cloudy to model gas that is not in steady-state equilibrium and present a preliminary model of recombining gas in a planetary nebula that is on the cooling track. We finish with a short discussion of how we are speeding up the code by using parallelization.
