用ANTARES程序模拟多维恒星对流和脉动
Modelling stellar convection and pulsation in multidimensions using the ANTARES code
摘要：
ANTARES代码是为模拟各种情况下的天体物理流动而设计的，特别是在恒星物理学方面。在这里，我们描述扩展作为必要的模型的脉动和对流的相互作用，在经典的脉动星。这些扩展包括引入可沿径向移动的球形网格、网格细化的具体形式以及关于辐射转移的考虑。然后，我们提出的造父变星的基本参数，我们更密切地研究。对于该恒星，我们提供了一个简短的讨论模式的H+HeI和HeII对流区和脉动的相互作用中看到的pdV工作或大气结构。
英文摘要：
The ANTARES code has been designed for simulation of astrophysical flows in a variety of situations, in particular in the context of stellar physics. Here, we describe extensions as necessary to model the interaction of pulsation and convection in classical pulsating stars. These extensions encomprise the introduction of a spherical grid, movable in the radial direction, specific forms of grid-refinement and considerations regarding radiative transfer. We then present the basic parameters of the cepheid we study more closely. For that star we provide a short discussion of patterns of the H+HeI and the HeII convection zones and the interaction with pulsation seen in the pdV work or atmospheric structures.
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