3D NLTE modeling of CO line formation in cool stars

在寒冷的恒星大气(包括太阳)中，CO谱线的形成很难详细了解，还需要进一步研究。在这个项目中，我们计划研究不均匀大气对CO谱线强度的影响。因此，我们计划扩展我们现有的3D辐射传输框架，以包括CO分子的NLTE线形成。模拟将同时针对参数化大气和使用来自流体动力学模型的结构进行。我们的计算结果将与现有的观测结果进行比较。我们将进一步深入了解这种恒星大气中CO谱线形成的物理机制，并获得更多关于其结构的信息。

The formation of CO lines in cool stellar atmospheres (including our Sun) is hard to understand in detail and requires further research. In this project we plan to investigate the effects of inhomogeneous atmospheres on the strength of the CO lines. We thus plan to extend our existing 3D radiative transfer framework to include NLTE line formation of CO molecules. The simulations will be carried out for both parameterized atmospheres and using the structures from hydrodynamical models. The results of our calculation will be compared to available observations. We will gain further significant insight into the physics of CO line formation in such stellar atmospheres and to obtain more information about their structure.