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题名: Testing modified gravity models with recent cosmological observations
作者: Zhang, WS ;  Cheng, C ;  Huang, QG ;  Li, M ;  Li, S ;  Li, XD ;  Wang, S
刊名: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期: 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
学科分类: Physics
通讯作者: Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Zhang WenShuai; Cheng Cheng; Huang QingGuo; Li Miao; Li Song; Li XiaoDong; Wang Shuang] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhang WenShuai; Li XiaoDong; Wang Shuang] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China; [Cheng Cheng; Huang QingGuo; Li Miao; Li Song] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Huang QingGuo; Li Miao] Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Li XiaoDong] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, 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.
资助者: National Natural Science Foundation of China [10535060/A050207, 10821504, 10975167]; Chinese Academy of Science; NSFC
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000312436000005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14972
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
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.
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