Testing modified gravity models with recent cosmological observations

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	Testing modified gravity models with recent cosmological observations
	Huang, QG; Li, M
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2012
卷号	55 期号:12 页码:2244-2258
关键词	GAMMA-RAY BURSTS HOLOGRAPHIC DARK ENERGY DIGITAL SKY SURVEY BARYON ACOUSTIC-OSCILLATIONS SUPERNOVA LEGACY SURVEY HUBBLE-SPACE-TELESCOPE MODIFIED CHAPLYGIN-GAS YANG-MILLS CONDENSATE LYMAN-ALPHA FOREST BVRI LIGHT CURVES
ISSN号	1674-7348
通讯作者	Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	We explore the cosmological implications of five modified gravity (MG) models by using the recent cosmological observational data, including the recently released SNLS3 type Ia supernovae sample, the cosmic microwave background anisotropy data from the Wilkinson Microwave Anisotropy Probe 7-yr observations, the baryon acoustic oscillation results from the Sloan Digital Sky Survey data release 7, and the latest Hubble constant measurement utilizing the Wide Field Camera 3 on the Hubble Space Telescope. The MG models considered include the Dvali-Gabadadze-Porrati (DGP) model, two f (R) models, and two f (T) models. We find that compared with the I > CDM model, MG models can not lead to an appreciable reduction of the chi (min) (2) . The analysis of AIC and BIC shows that the simplest cosmological constant model (Lambda CDM) is still the most preferred by the current data, and the DGP model is strongly disfavored. In addition, from the observational constraints, we also reconstruct the evolutions of the growth factor in these models. We find that the current available growth factor data are not enough to distinguish these MG models from the Lambda CDM model.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [10535060/A050207, 10821504, 10975167]; Chinese Academy of Science; NSFC
原文出处	http://dx.doi.org/10.1007/s11433-012-4945-9
语种	英语
WOS记录号	WOS:000312436000005
公开日期	2014-04-24
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14972]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Huang, QG,Li, M. Testing modified gravity models with recent cosmological observations[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(12):2244-2258.
APA	Huang, QG,&Li, M.(2012).Testing modified gravity models with recent cosmological observations.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(12),2244-2258.
MLA	Huang, QG,et al."Testing modified gravity models with recent cosmological observations".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.12(2012):2244-2258.