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题名: Figure of merit and different combinations of observational data sets
作者: Su, QP ;  Tuo, ZL ;  Cai, RG
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 84, 期号:10, 页码:103519
关键词: OBSERVATIONS COSMOLOGICAL INTERPRETATION ;  SUPERNOVA LEGACY SURVEY ;  HUBBLE-SPACE-TELESCOPE ;  DARK ENERGY ;  COSMIC ACCELERATION ;  IA SUPERNOVAE ;  CONSTRAINTS ;  UNIVERSE ;  PROBE ;  CONSTANT
学科分类: Physics
通讯作者: Su, QP (reprint author), Hangzhou Normal Univ, Dept Phys, Hangzhou 310036, Zhejiang, Peoples R China.
部门归属: [Su, Qiping] Hangzhou Normal Univ, Dept Phys, Hangzhou 310036, Zhejiang, Peoples R China; [Su, Qiping; Tuo, Zhong-Liang; Cai, Rong-Gen] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: To constrain cosmological parameters, one often makes a joint analysis with different combinations of observational data sets. In this paper we take the figure of merit (FoM) for Dark Energy Task Force fiducial model (Chevallier-Polarski-Linder model) to estimate goodness of different combinations of data sets, which include 11 widely used observational data sets (type Ia supernovae, observational hubble parameter, baryon acoustic oscillation, cosmic microwave background, x-ray cluster baryon mass fraction, and gamma-ray bursts). We analyze different combinations and make a comparison for two types of combinations based on two types of basic combinations, which are often adopted in the literature. We find two sets of combinations, which have a strong ability to constrain the dark energy parameters: one has the largest FoM, and the other contains less observational data with a relatively large FoM and a simple fitting procedure.
资助者: National Natural Science Foundation of China [10821504, 10975168, 11035008, 11075098]; Ministry of Science and Technology of China [2010CB833004]; Chinese Academy of Sciences
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000297158800002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14230
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Su, QP,Tuo, ZL,Cai, RG. Figure of merit and different combinations of observational data sets[J]. PHYSICAL REVIEW D,2011,84(10):103519.
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