摘要
本文绘出了用改进后的视向速度成员确定方法对8个Abed星系团进行成员概率计算的具体结果。从团天区内场星系的分布情况来看，改进后的成员确定方法明显地改善了使用原方法所出现的场星系向团中心聚集的不合理现象。对有效性指数E的分析表明，方法改进后，星系团成员确定的有效性也有整体上的提高。
In this paper, the detailed results for membership probabilities of individual gaIaxies in 8Abell clusters are given, which are obtained from the improved approach of statistical deter mination of radial velocity membership of galaxy clusters. lt is shown from the distributionof field galaxies that the unreasonable concentration of field galaxies which is caused by theoriginal model has been smoothed successfully now. By using the analysis of index E, theeffectivity of membership results can be obviously found.
出处
《中国科学院上海天文台年刊》
1996年第17期211-222,共12页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
基金
国家自然科学基金
上海天文台青年实验室资助
