Local probes strongly favor Lambda CDM against power-law and R-h=ct universe

doi:10.1088/1674-1137/42/9/095101

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	Local probes strongly favor Lambda CDM against power-law and R-h=ct universe
	Sang, Y; Sang Y(桑语); Li, X; Lin, HN
刊名	CHINESE PHYSICS C
	2018
卷号	42 期号:9 页码:95101
关键词	cosmological parameters distance scale supernovae: general
ISSN号	1674-1137
DOI	10.1088/1674-1137/42/9/095101
文献子类	Article
英文摘要	We constrain three cosmological models - the concordance cold dark matter plus cosmological constant (Lambda CDM) model, the power-law (PL) model, and the R-h=ct model - using the available local probes, which include the JLA compilation of type-Ia supernovae (SNe Ia), the direct measurement of the Hubble constant (H(z)), and the baryon acoustic oscillations (BAO). For the Lambda CDM model, we consider two different cases, i.e. zero and non-zero spatial curvature. We find that by using the JLA alone, the Lambda CDM and PL models are indistinguishable, but the R-h=ct model is strongly disfavored. If we combine JLA+H(z), the Lambda CDM model is strongly favored over the other two models. The combination of all three datasets supports Lambda CDM as the best model. We also use the low-redshift (z < 0. 2) data to constrain the deceleration parameter using the cosmography method, and find that only the Lambda CDM model is consistent with cosmography. However, there is no strong evidence to distinguish between flat and non-flat Lambda CDM models by using the local data alone.
电子版国际标准刊号	2058-6132
WOS关键词	BARYON ACOUSTIC-OSCILLATIONS ; COSMOLOGICAL CONSTANT ; IA SUPERNOVAE ; CT UNIVERSE ; MODEL ; CONSTRAINTS ; GROWTH
WOS研究方向	Physics
语种	英语
CSCD记录号	CSCD:6315239
WOS记录号	WOS:000442649300011
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286240]
专题	中国科学院高能物理研究所_中国散裂中子源高能物理研究所_理论物理室
通讯作者	Sang Y(桑语)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Sang, Y,Sang Y,Li, X,et al. Local probes strongly favor Lambda CDM against power-law and R-h=ct universe[J]. CHINESE PHYSICS C,2018,42(9):95101.
APA	Sang, Y,桑语,Li, X,&Lin, HN.(2018).Local probes strongly favor Lambda CDM against power-law and R-h=ct universe.CHINESE PHYSICS C,42(9),95101.
MLA	Sang, Y,et al."Local probes strongly favor Lambda CDM against power-law and R-h=ct universe".CHINESE PHYSICS C 42.9(2018):95101.