贫金属星HD203608和HD211998的重元素丰度分布

根据贫金属星个别重元素丰度的观测值和太阳系重核素的ｒ过程和ｓ过程分量的丰度分布，计算了贫金属星ＨＤ２０３６０８和ＨＤ２１１９９８的重元素丰度并与观测进行了比较。结果表明，太阳系纯ｒ过程和ｓ过程元素丰度均不能拟合出这二颗样品星的丰度观测值，而应同时考虑ｒ过程和ｓ过程的贡献

Abundance Distributions of the Heavy Element in Metal-poor Stars HD 203608 and HD 211998

Based on the observations of the individually typical element abundances of metal poor stars and the solar heavy nuclide abundances of the r process and s process, the abundances of the heavy elements in metal poor stars HD 203608 and HD 211998 are calculated. The comparisons between the calculations and the observations shown that, the observations of the two stars can not be matched by the pure r process or pure s process abundance distributions of the solar system, while they can be better fitted if the contributions of the solar r process and s process were considered together.