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Critical examinations of QSO redshift periodicities and associations with galaxies in Sloan Digital Sky Survey data
Tang, SM; Zhang SN(张双南); Zhang, SN
2005
发表期刊ASTROPHYSICAL JOURNAL
卷号633期号:1页码:#REF!
通讯作者Tang, SM (reprint author), Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
文章类型Article
摘要We have used the publicly available data from the Sloan Digital Sky Survey and 2dF QSO redshift survey to test the hypothesis that QSOs are ejected from active galaxies with periodic noncosmological redshifts. For two different intrinsic redshift models, namely the Karlsson log (1 + z) model and Bell's decreasing intrinsic redshift (DIR) model, we do two tests. First, using different criteria, we generate four sets of QSO-galaxy pairs and find there is no evidence for a periodicity at the predicted frequency in log (1 + z), or at any other frequency. We then check the relationship between high-redshift QSOs and nearby active galaxies, and we find that the distribution of projected distance between high-redshift QSOs and nearby active galaxies and the distribution of redshifts of those active galaxies are consistent with a distribution of simulated random pairs, completely different from Bell's previous conclusion. We also analyze the periodicity in redshifts of QSOs, and no periodicity is found in high-completeness samples, contrary to the DIR model. These results support the hypothesis that QSOs are not ejected from active galaxies.
关键词galaxies : active large-scale structure of universe quasars : general
学科领域Astronomy & Astrophysics
DOI10.1086/432754
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000232832500005
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225689
专题粒子天体物理中心
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Tang, SM,Zhang SN,Zhang, SN. Critical examinations of QSO redshift periodicities and associations with galaxies in Sloan Digital Sky Survey data[J]. ASTROPHYSICAL JOURNAL,2005,633(1):#REF!.
APA Tang, SM,张双南,&Zhang, SN.(2005).Critical examinations of QSO redshift periodicities and associations with galaxies in Sloan Digital Sky Survey data.ASTROPHYSICAL JOURNAL,633(1),#REF!.
MLA Tang, SM,et al."Critical examinations of QSO redshift periodicities and associations with galaxies in Sloan Digital Sky Survey data".ASTROPHYSICAL JOURNAL 633.1(2005):#REF!.
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