类星体红移分布的周期性  

The Periodicity in Redshift Distribution of QSOs

作　　者：屈进禄[1,2] 田钢[1,2] 白占立 曹盛林 

机构地区：[1]河北师范大学西校区物理系 [2]北京师范大学天文系

出　　处：《河北师范大学学报（自然科学版）》1997年第1期40-44,共5页Journal of Hebei Normal University：Natural Science

摘　　要：利用功率谱分析（ＰＳＡ）和ＲＡＹＬＥＩＧＨ技术对由非物端棱镜选类星体和复合技术选类星体样品的红移分布的周期性进行了统计检验，发现对于本文所选的两个样品存在一个ζ＝０．０１３的周期。为考虑此样品的完整性和每种选择效应对样品周期性的影响，对非物端棱镜选类星体的子样品以及各种技术选类星体样品的计算，并和１９８９年，１９９１年版类星体表比较，结果表明ζ＝０．０１３的周期是一不随样品改变而变化的周期值，这说明类星体红移分布存在ζ＝０．０１３的周期。This paper tests the periodicities in the redshift distribution of the quasi-stellar objects by the power spectrum analysis (PSA),and Rayieigh statistic analysis.A perioridicity of ζ=0.013 is found.Considering the integrity and the various observational selection effects,we calculate and compare the samples by various selected technique and the children samples by the power spectrum analysis method.We find the periodicity of ζ=0.013 is a stable periodicity.So we draw a conclusion that the periodicity of QSOs shouldn't arise from the selection effects.It reflects the nature of distribution of redshift of QSOs.

关 键 词：类星体 红移分布 周期性 

分 类 号：P158[天文地球—天文学]