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题名: Finding possibility of dynamical dark energy with Hubble parameters
作者: Wang, JX ;  Meng, XH
刊名: MODERN PHYSICS LETTERS A
出版日期: 2014
卷号: 29, 期号:32, 页码:1450155
关键词: CONSTANT
学科分类: Physics
DOI: 10.1142/S0217732314501557
通讯作者: Wang, JX (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
部门归属: [Wang, Jiaxin] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ;  Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: The Hubble parameter is a critical measurement in cosmology, which contains the most direct information of the cosmic expansion history. Since discrepancy is found between low redshift and high redshift estimations of Hubble constant, we are interested in whether that tension indicates dynamical dark energy. In this paper, we emphasize that the observed Hubble parameters at various redshifts, along with observed Hubble constant, can help us in probing the evolutional behavior of the mysterious dark energy. Null hypothesis tests are carried out with two diagnostic approaches. We find out that, according to the present measurements of Hubble parameters, rejection of constant dark energy is captured at 1 sigma level from null tests with and without the observed value of Hubble constant.
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000344227400003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15616
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Wang, JX,Meng, XH. Finding possibility of dynamical dark energy with Hubble parameters[J]. MODERN PHYSICS LETTERS A,2014,29(32):1450155.
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