Direct evidence of acceleration from a distance modulus-redshift graph
文献类型:期刊论文
作者 | Gong, Yungui; Wu, Qiang; Zhang, Yuan-Zhong![]() |
刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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出版日期 | 2007 |
期号 | 8页码:- |
关键词 | Dark Energy Cosmological Constant Cosmic Acceleration Supernova Constraints Universe Model Probe Reconstruction Quintessence |
ISSN号 | 1475-7516 |
英文摘要 | The energy conditions give upper bounds on the luminosity distance. We apply these upper bounds to the 192 ESSENCE supernova Ia data to show that the Universe has experienced accelerated expansion. This conclusion is drawn directly from the distance modulus - redshift graph. In addition to being a very simple method, this method is also totally independent of any cosmological model. From the degeneracy of the distance modulus at low redshift, we argue that the choice of omega(0) for probing the property of dark energy is misleading. One explicit example is used to support this argument. |
学科主题 | Physics |
URL标识 | 查看原文 |
WOS记录号 | WOS:000249222000007 |
公开日期 | 2012-08-02 |
源URL | [http://ir.itp.ac.cn/handle/311006/5685] ![]() |
专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
通讯作者 | Gong, YG , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China |
推荐引用方式 GB/T 7714 | Gong, Yungui,Wu, Qiang,Zhang, Yuan-Zhong,et al. Direct evidence of acceleration from a distance modulus-redshift graph[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2007(8):-. |
APA | Gong, Yungui,Wu, Qiang,Zhang, Yuan-Zhong,Gong, YG , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China,&Wang, Anzhong.(2007).Direct evidence of acceleration from a distance modulus-redshift graph.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),-. |
MLA | Gong, Yungui,et al."Direct evidence of acceleration from a distance modulus-redshift graph".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2007):-. |
入库方式: OAI收割
来源:理论物理研究所
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