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Constraints on cosmic distance duality relation from cosmological observations
Lv MZ(吕孟珍); Lv, MZ; Xia, JQ
2016
发表期刊PHYSICS OF THE DARK UNIVERSE
卷号13页码:139
文章类型Article
摘要In this paper, we use the model dependent method to revisit the constraint on the well-known cosmic distance duality relation (CDDR). By using the latest SNIa samples, such as Union2.1, JLA and SNLS, we find that the SNIa data alone cannot constrain the cosmic opacity parameter epsilon, which denotes the deviation from the CDDR, d(L) = d(A)(1+ z)(2+epsilon), very well. The constraining power on epsilon from the luminosity distance indicator provided by SNIa and GRB is hardly to be improved at present. When we include other cosmological observations, such as the measurements of Hubble parameter, the baryon acoustic oscillations and the distance information from cosmic microwave background, we obtain the tightest constraint on the cosmic opacity parameter epsilon, namely the 68% C.L. limit: epsilon = 0.023 +/- 0.018. Furthermore, we also consider the evolution of epsilon as a function of z using two methods, the parametrization and the principle component analysis, and do not find the evidence for the deviation from zero. Finally, we simulate the future SNIa and Hubble measurements and find the mock data could give very tight constraint on the cosmic opacity epsilon and verify the CDDR at high significance. (C) 2016 Elsevier B.V. All rights reserved.
关键词Cosmic distance duality relation Cosmological observations Supernova type Ia Tests of cosmology
DOI10.1016/j.dark.2016.06.003
关键词[WOS]BARYON ACOUSTIC-OSCILLATIONS ; GAMMA-RAY BURSTS ; HUBBLE-SPACE-TELESCOPE ; DARK-ENERGY ; GALAXY CLUSTERS ; IA SUPERNOVAE ; CONSTANT ; PARAMETER ; UNIVERSE ; SAMPLES
语种英语
WOS记录号WOS:000384024800014
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260825
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Lv MZ,Lv, MZ,Xia, JQ. Constraints on cosmic distance duality relation from cosmological observations[J]. PHYSICS OF THE DARK UNIVERSE,2016,13:139.
APA 吕孟珍,Lv, MZ,&Xia, JQ.(2016).Constraints on cosmic distance duality relation from cosmological observations.PHYSICS OF THE DARK UNIVERSE,13,139.
MLA 吕孟珍,et al."Constraints on cosmic distance duality relation from cosmological observations".PHYSICS OF THE DARK UNIVERSE 13(2016):139.
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