Virgo星系团中星系与类星体成协  

Association Between QSOs and Galaxies in the Field of the Virgo Cluster

作　　者：朱杏芬[1] 褚耀泉[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》1995年第1期10-17,共8页

基　　金：国家自然科学基金;国家教委博士点研究基金

摘　　要：根据ＬＢＱＳ在Ｖｉｒｇｏ天区的类星体样品和ＢＳＴ的Ｖｉｒｇｏ星系团的星系样品，利用交叉相关函数的方法研究了类星体与星系成协的现象，发现在角间距５＇＜θ＜４０＇范围内成员星系与类星体有明显的成协性。而对背景星系不存在这种成协现象。本文还讨论了成协与视星等的关系问题。The association between QSOs and galaxies has been examined by the two point angular cross-correlation function using the LBQS QSO sample in the Virgo field and the BST galaxy catalog of the Virgo cluster. We have found statistically significant evidence of the association at angular separations of 5'<θ<40' for the member galaxies of the Virgo cluster, but not for the background galaxies. We also examined the relation between the association and apparent magnitudes of the objects.

关 键 词：类星体 星系 成协 星系团 

分 类 号：P157.8[天文地球—天文学]