不同类型Abell团与类星体的成协  

The Association of Different Types of Abell Clusters and QSOs

作　　者：朱杏芬[1] 

机构地区：[1]中国科学技术大学天体物理中心

出　　处：《天体物理学报》1997年第2期146-152,共7页

基　　金：国家自然科学基金

摘　　要：本文采用覆盖全天区的ＨＢ类星体表和ＡＣＯ星系团表为样本，对不同类型的Ａｂｅｌ星系团进行分类研究，发现不同类型的星系团与类星体的成协有不同的特性．两样品的ＫＳ检验证实与Ａｂｅｌ成协（或反成协）的类星体与全部类星体不是出自同一母体，说明这种成协（或反成协）是真实的，不是由投影效应引起的．进一步的计算得到，Ｄ４的Ａｂｅｌ团对其周围成协类星体的密度增强因子ｑ＝１．０８９，Ｒ２的Ａｂｅｌ团对其周围的类星体的吸收星等ＡＢ＝０．０９．Using the new version of Hewitt Burbidge QSO Catalogue and the all sky catalogue of Abell Clusters (ACO, 1989), we analyse the cross correlation function of QSOs and different types of Abell clusters and find different features between them.Application of K S Test shows that the QSOs which correlated (or anticorrelated ) with the clusters are really different from the whole QSO sample in magnitude/redshift distribution. This indicates that the association between them is real and not caused by the projection effect. Further calculation yields an enhancement factor of QSO density around D4 Clusters as q=1.089, and the extinction magnitude of QSO deficiency (for R2 clusters) as A B = 0.09.

关 键 词：类星体 星系团 成协 Abell团 

分 类 号：P158[天文地球—天文学]