ITP OpenIR  > SCI期刊论文
Zhang, WS; Cheng, C; Huang, QG; Li, M; Li, S; Li, XD; Wang, S; Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
Testing modified gravity models with recent cosmological observations
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Language英语
KeywordGamma-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
AbstractWe 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.
2012
ISSN1674-7348
Volume55Issue:12Pages:2244-2258
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [10535060/A050207, 10821504, 10975167]; Chinese Academy of Science; NSFC ; National Natural Science Foundation of China [10535060/A050207, 10821504, 10975167]; Chinese Academy of Science; NSFC ; National Natural Science Foundation of China [10535060/A050207, 10821504, 10975167]; Chinese Academy of Science; NSFC ; National Natural Science Foundation of China [10535060/A050207, 10821504, 10975167]; Chinese Academy of Science; NSFC
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Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14972
CollectionSCI期刊论文
Corresponding AuthorHuang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, WS,Cheng, C,Huang, QG,et al. Testing modified gravity models with recent cosmological observations[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(12):2244-2258.
APA Zhang, WS.,Cheng, C.,Huang, QG.,Li, M.,Li, S.,...&Huang, QG .(2012).Testing modified gravity models with recent cosmological observations.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(12),2244-2258.
MLA Zhang, WS,et al."Testing modified gravity models with recent cosmological observations".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.12(2012):2244-2258.
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