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A new approach for studying Hubble diagrams of quasars
Tan YP(覃一平)1; Xie GZ(谢光中)1; Wang JC(王建成)1; He MC(何妙婵)1; Fan, JH2; Qin, YP
Source PublicationASTROPHYSICS AND SPACE SCIENCE
1997
Volume253Issue:1Pages:19-26
DOI10.1023/A:1000588421897
Contribution Rank第1完成单位
Indexed BySCI
AbstractIn this paper, a new approach for studying Hubble diagrams of quasars is introduced. The purpose is to reduce the well-known very large scatter in the diagram. We believe that the scatter is mainly caused by the wide spread of luminosity distribution of quasars. Based on a large number of quasars having been discovered, we introduce a new quantity, the collective apparent magnitude of certain amount of quasars in a corresponding redshift interval, and make a plot of the collective apparent magnitude versus redshift with the data published by Hewitt and Burbidge (1993). The quantity is contributed by individual apparent luminosities as well as the luminosity distribution of quasars. Scatter is expected to be largely reduced in the corresponding diagram, and this is indeed true as shown by the figures. By discussing several possible effects and from the figures, we find that the assumption that redshifts of quasars are distance indicators is confirmed, and the standard cosmological model is supported.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-640X
URL查看原文
WOS IDWOS:000073095400004
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordOPTICALLY SELECTED QSOS ; STELLAR OBJECTS ; DUST ; OBSCURATION ; EVOLUTION ; CATALOG
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6885
Collection星系研究组
Corresponding AuthorQin, YP
Affiliation1.Yunnan Observatory, The Chinese Academy of Sciences, Kunming 650011, P. R. China
2.Center for Astrophysics, Guangzhou Normal University, Guangzhou 510400, P. R. China
Recommended Citation
GB/T 7714
Tan YP,Xie GZ,Wang JC,et al. A new approach for studying Hubble diagrams of quasars[J]. ASTROPHYSICS AND SPACE SCIENCE,1997,253(1):19-26.
APA Tan YP,Xie GZ,Wang JC,He MC,Fan, JH,&Qin, YP.(1997).A new approach for studying Hubble diagrams of quasars.ASTROPHYSICS AND SPACE SCIENCE,253(1),19-26.
MLA Tan YP,et al."A new approach for studying Hubble diagrams of quasars".ASTROPHYSICS AND SPACE SCIENCE 253.1(1997):19-26.
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