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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
发表期刊ASTROPHYSICS AND SPACE SCIENCE
1997
卷号253期号:1页码:19-26
DOI10.1023/A:1000588421897
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收录类别SCI
摘要In 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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-640X
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WOS记录号WOS:000073095400004
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]OPTICALLY SELECTED QSOS ; STELLAR OBJECTS ; DUST ; OBSCURATION ; EVOLUTION ; CATALOG
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6885
专题星系研究组
通讯作者Qin, YP
作者单位1.Yunnan Observatory, The Chinese Academy of Sciences, Kunming 650011, P. R. China
2.Center for Astrophysics, Guangzhou Normal University, Guangzhou 510400, P. R. China
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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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