ITP OpenIR  > 理论物理所2013年知识产出
Testing X-ray measurements of galaxy cluster gas mass fraction using the cosmic distance-duality relation
Wang, X; Meng, XL; Huang, YF; Zhang, TJ; Wang, X (reprint author), Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China.
2013
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
卷号13期号:9页码:1013-1024
摘要We propose a consistency test for some recent X-ray gas mass fraction (f(gas)) measurements in galaxy clusters, using the cosmic distance-duality relation, eta(theory) = D-L (1 + z)(-2)/D-A, with luminosity distance (D-L) data from the Union2 compilation of type Ia supernovae. We set eta(theory) equivalent to 1, instead of assigning any red-shift parameterizations to it, and constrain the cosmological information preferred by f(gas) data along with supernova observations. We adopt a new binning method in the reduction of the Union2 data, in order to minimize the statistical errors. Four data sets of X-ray gas mass fraction, which are reported by Allen et al. (two samples), LaRoque et al. and Ettori et al., are analyzed in detail in the context of two theoretical models of f(gas). The results from the analysis of Allen et al.'s samples demonstrate the feasibility of our method. It is found that the preferred cosmology by LaRoque et al.'s sample is consistent with its reference cosmology within the 1 sigma confidence level. However, for Ettori et al.'s f(gas) sample, the inconsistency can reach more than a 3 sigma confidence level and this dataset shows special preference to an Omega(Delta) = 0 cosmology.
部门归属[Wang, Xin; Huang, Yong-Feng] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China; [Wang, Xin; Meng, Xiao-Lei; Zhang, Tong-Jie] Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China; [Wang, Xin; Meng, Xiao-Lei] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China; [Zhang, Tong-Jie] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
关键词Hubble-space-telescope Cosmological Parameters Dark-energy Baryon Fraction Ia Supernovae Constraints Constant Sample Simulations Evolution
学科领域Physics
资助者National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities ; National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities ; National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities ; National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities
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收录类别SCI
语种英语
资助者National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities ; National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities ; National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities ; National Basic Research Program of China (973 program) [2009CB824800, 2012CB821804]; National Natural Science Foundation of China [11033002, 11173006]; Fundamental Research Funds for the Central Universities
WOS记录号WOS:000323757800001
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15289
专题理论物理所2013年知识产出
通讯作者Wang, X (reprint author), Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China.
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Wang, X,Meng, XL,Huang, YF,et al. Testing X-ray measurements of galaxy cluster gas mass fraction using the cosmic distance-duality relation[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(9):1013-1024.
APA Wang, X,Meng, XL,Huang, YF,Zhang, TJ,&Wang, X .(2013).Testing X-ray measurements of galaxy cluster gas mass fraction using the cosmic distance-duality relation.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(9),1013-1024.
MLA Wang, X,et al."Testing X-ray measurements of galaxy cluster gas mass fraction using the cosmic distance-duality relation".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.9(2013):1013-1024.
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