Cosmological model with local symmetry of very special relativity and constraints on it from supernovae

	Cosmological model with local symmetry of very special relativity and constraints on it from supernovae
	Chang Z(常哲); Li MH(李明华); Li X(李昕); 王赛;Chang, Z; Li, MH; Li, X; Wang, S
刊名	EUROPEAN PHYSICAL JOURNAL C
	2013
卷号	73 期号:6 页码:2459
英文摘要	Based on Cohen & Glashow's very special relativity (Cohen and Glashow in Phys. Rev. Lett. 97: 021601, 2006), we propose an anisotropic modification to the Friedmann-Robertson-Walker (FRW) line element. An arbitrarily oriented 1-form is introduced and the FRW spacetime becomes of the Randers-Finsler type. The 1-form picks out a privileged axis in the universe. Thus, the cosmological red-shift as well as the Hubble diagram of the type Ia supernovae (SNe Ia) becomes anisotropic. By directly analyzing the Union2 compilation, we obtain the privileged axis pointing to (l, b) = (304 degrees +/- 43 degrees,-27 degrees +/- 13 degrees) (68 % C.L.). This privileged axis is close to those obtained by comparing the best-fit Hubble diagrams in pairs of hemispheres. It should be noticed that the result is consistent with isotropy at the 1 sigma level since the anisotropic magnitude is D = 0.03 +/- 0.03.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000321855400015
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224461]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Chang Z,Li MH,Li X,et al. Cosmological model with local symmetry of very special relativity and constraints on it from supernovae[J]. EUROPEAN PHYSICAL JOURNAL C,2013,73(6):2459.
APA	常哲.,李明华.,李昕.,王赛；Chang, Z.,Li, MH.,...&Wang, S.(2013).Cosmological model with local symmetry of very special relativity and constraints on it from supernovae.EUROPEAN PHYSICAL JOURNAL C,73(6),2459.
MLA	常哲,et al."Cosmological model with local symmetry of very special relativity and constraints on it from supernovae".EUROPEAN PHYSICAL JOURNAL C 73.6(2013):2459.