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arXiv 0908.4496astro-ph.SR
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CIFIST三维模型大气网格

The CIFIST 3D model atmosphere grid

H. -G. Ludwig, E. Caffau, M. Steffen, B. Freytag, P. Bonifacio, A. Kucinskas

摘要:

恒星大气模型网格和相关的合成光谱是在天文学中有很大影响的数值产品,因为它们在解释来自单个恒星和恒星星族的辐射中的普遍应用。3D模型大气现在即将成为广泛适用于恒星大气参数的模型。我们报告的努力,开发一个网格的三维模型大气晚型恒星在巴黎天文台的CIFIST团队。模型生产和后处理对计算和人力的大量需求使得这项看似平凡的任务成为一项具有挑战性的后勤工作。目前,CIEST网格包括77个3D模型大气层,重点是太阳和亚太阳金属丰度的矮星。虽然模型生产仍在进行中,但第一批应用程序已经由CIFIST团队和合作者进行了工作。

英文摘要:

Grids of stellar atmosphere models and associated synthetic spectra are numerical products which have a large impact in astronomy due to their ubiquitous application in the interpretation of radiation from individual stars and stellar populations. 3D model atmospheres are now on the verge of becoming generally available for a wide range of stellar atmospheric parameters. We report on efforts to develop a grid of 3D model atmospheres for late-type stars within the CIFIST Team at Paris Observatory. The substantial demands in computational and human labor for the model production and post-processing render this apparently mundane task a challenging logistic exercise. At the moment the CIFIST grid comprises 77 3D model atmospheres with emphasis on dwarfs of solar and sub-solar metallicities. While the model production is still ongoing, first applications are already worked upon by the CIFIST Team and collaborators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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