CoRoT/ESTA-TASK 1和TASK 3代表性恒星模型内部结构和地震特性的比较:ASTEC、CESAM、CLES、GARSTEC和STAROX代码之间的比较
CoRoT/ESTA-TASK 1 and TASK 3 comparison of the internal structure and seismic properties of representative stellar models: Comparisons between the ASTEC, CESAM, CLES, GARSTEC and STAROX codes
摘要:
我们比较不同的恒星演化代码产生的恒星模型的CoRoT/ESTA项目,比较他们的全球量,他们的物理结构,和他们的振荡特性。我们讨论模型之间的差异,并确定这些差异的根本原因。恒星模型代表了潜在的CoRoT目标。总的来说,我们发现五个不同的代码之间非常好的协议,但有一些显着的偏差。我们发现显着的差异(虽然仍然在百分之一的水平),从状态方程的处理,不透明度和对流边界的结果。我们的工作结果将有助于解释未来的星震学结果从CoRoT。
英文摘要:
We compare stellar models produced by different stellar evolution codes for the CoRoT/ESTA project, comparing their global quantities, their physical structure, and their oscillation properties. We discuss the differences between models and identify the underlying reasons for these differences. The stellar models are representative of potential CoRoT targets. Overall we find very good agreement between the five different codes, but with some significant deviations. We find noticeable discrepancies (though still at the per cent level) that result from the handling of the equation of state, of the opacities and of the convective boundaries. The results of our work will be helpful in interpreting future asteroseismology results from CoRoT.
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