| 类星体红移分布的高频周期 |
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| 引用本文： | 韩金林,何香涛.类星体红移分布的高频周期[J].中国天文和天体物理学报,1994(1). |
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| 作者姓名： | 韩金林 何香涛 |
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| 作者单位： | 中国科学院北京天文台，北京师范大学天文系 |
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| 摘 要： | 本文对Ｖｅｒｏｎ－Ｃｅｔｔｙ和Ｖｅｒｏｎ类星体表中３１９７颗红移精度为０．００１的类星体做了红移分布的周期性分析。结果表明：类星体红移值在几个方向上存在高频波动的周期性分布，且置信度水平较高。根据我们的分析，这种周期性不可能完全是由于选择效应引起的。因此，类星体在大尺度上的分布很可能具有大约５０Ｍｐｃ的周期涨落。
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| 关 键 词： | 类星体－红移－周期性 |
The High Frequency Periods in the Redshift Distribution of Quasars |
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| HAN Jin-lin.The High Frequency Periods in the Redshift Distribution of Quasars[J].Chinese Journal of Astronomy and Astrophysics,1994(1). |
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| Authors: | HAN Jin-lin |
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| Abstract: | The Periodicity in the redshift distribution of quasars is analysed.The sample used is 3179 quasars with redshift accuracy 0.001 extracted from in the AGN catalog compiled by Veron-Cetty and Veron(1989).A few high frequency periods are found in different sky regions with confidence levels higher than 90%.Such a high frequency period is not due to the selection effect in observations according to our analyses.The results show that quasars distribute possibly in the universe with a large scale periodic fluctuation of a characteristic scale about 50h-1 Mpc. |
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| Keywords: | quasar-redshift-period |
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