Radiative acceleration calculation methods and abundance anomalies in Am stars

This archive contains stellar structures used to create the figures of surface abundance evolution with time of the paper entitled "Radiative acceleration calculation methods and abundance anomalies in Am stars" to be published in Astronomy & Astrophysics. The first directory level refers to the dataset used to compute the Rosseland mean opacities (OP = Opacity Project for instance), the second to the stellar mass (in solar mass unit), and the third to the g_rad calculation method and the prescriptions used for macroscopic transport processes (e.g. SVP2004_RMT for g_rad computed with the 2004 version of the SVP approximation and the RMT turbulence model). In each of these directories, the stellar structure file name contains the age (e.g. "structure.00215.78.gz" for an age of 215.78 Myr). The first line of each stellar structure file shows the meaning of each field. The columns are separated with tabulations to allow easy an importation in spreadsheets. All quantities are expressed in cgs units, the abundances in mass fractions.本归档数据集包含用于绘制即将发表于《Astronomy & Astrophysics》的论文《辐射加速度计算方法与Am型恒星（Am stars）的丰度异常》中恒星表面丰度随时间演化相关图表的恒星结构数据。 数据集的第一级目录对应用于计算罗斯兰平均不透明度（Rosseland mean opacities）的方案（例如不透明度项目（Opacity Project，OP））；第二级目录对应恒星质量（单位为太阳质量）；第三级目录对应辐射加速度（g_rad）的计算方法，以及宏观输运过程所用的预设模型（例如SVP2004_RMT代表采用2004版SVP近似与RMT湍流模型计算得到的g_rad）。 在每个此类目录中，恒星结构文件名包含恒星年龄信息（例如文件"structure.00215.78.gz"对应的恒星年龄为215.78百万年）。 每个恒星结构文件的首行说明了各字段的含义。列之间以制表符分隔，便于导入电子表格。所有物理量均采用厘米-克-秒（cgs）单位制，丰度以质量分数表示。