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A simple method of determining the Hubble constant
Tan YP(覃一平); Qin, YP
发表期刊MODERN PHYSICS LETTERS A
1999-05-30
卷号14期号:16页码:1073-1077
DOI10.1142/S0217732399001140
产权排序第1完成单位
收录类别SCI
摘要Bidirectional relativistic proper motions of radio components of nearby extragalactic sources give a strong constraint on the determination of the Hubble constant H-o. Under the assumption that the real velocity of radio components of extragalactic sources is not less than that of Galactic sources, the value of H-o can be estimated at a high level of accuracy. The assumption is reasonable due to the general belief that the activity in the core of galaxies must be more powerful than that of stars. This method is simple and with only one uncertainty - the real velocity of components. This uncertainty is related to the value of the real velocity of components of Galactic sources and the latter is always well-determined (note that the determination is independent of H-o and the distance of Galactic sources can be directly measured at a rather high level of accuracy). Hopefully the method will play an important role in future research to fix the value of H-o With the data of the three sources available so far and the assumption that the real velocity of components of at least one of the sources is not less than a known velocity of components of a Galactic source, the constant is estimated to be within 27.08 kms(-1) Mpc(-1) < H-o less than or equal to 153.15 kms(-1) Mpc(-1) with this method.
语种英语
学科领域Physics
文章类型Article
ISSN0217-7323
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WOS记录号WOS:000081255500007
WOS研究方向Physics
WOS类目Physics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
关键词[WOS]RELATIVISTIC JETS ; DISCOVERY ; NGC-1275
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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/114a53/6858
专题星系研究组
通讯作者Qin, YP
作者单位Yunnan Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, P. R. China
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Tan YP,Qin, YP. A simple method of determining the Hubble constant[J]. MODERN PHYSICS LETTERS A,1999,14(16):1073-1077.
APA Tan YP,&Qin, YP.(1999).A simple method of determining the Hubble constant.MODERN PHYSICS LETTERS A,14(16),1073-1077.
MLA Tan YP,et al."A simple method of determining the Hubble constant".MODERN PHYSICS LETTERS A 14.16(1999):1073-1077.
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