A new approach for studying Hubble diagrams of quasars

doi:10.1023/A:1000588421897

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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, JH 2; Qin, YP
发表期刊	ASTROPHYSICS AND SPACE SCIENCE
	1997
卷号	253 期号:1 页码:19-26
DOI	10.1023/A:1000588421897
产权排序	第1完成单位
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
ISSN	0004-640X
URL	查看原文
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
引用统计	被引频次：2[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
第一作者单位	中国科学院云南天文台
推荐引用方式 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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