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Robustness of the Sunyaev-Zel
Cao, L; Zhang, YZ; Zhu, ZH; Cao, L , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
2001
发表期刊CHINESE PHYSICS LETTERS
ISSN0256-307X
卷号18期号:4页码:622-624
摘要After inversing the x-ray surface brightness of the cooling how cluster Abell 1689 through the isothermal beta model, the isothermal double beta model and the x-ray surface brightness distribution model derived from the universal dark matter density profile, we calculate the electron distribution and the Sunyaev-Zel'dovich (SZ) effect of the cluster. The resulting temperature decrements, which are inversely proportional to the square root of H-0, are very different for the three models, with an uncertainty of 15%. Thus, the SZ/x-ray route cannot be taken as a precise measurement of H-0 until further observations (e.g. from the satellite AXAF) constrain well the amount and distribution of cluster gas.
部门归属Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China; Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100012, Peoples R China
关键词Dark-matter Halo Galaxy Clusters Density Profile Gas-density
学科领域Physics
收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12783
专题理论物理所1978-2010年知识产出
通讯作者Cao, L , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
推荐引用方式
GB/T 7714
Cao, L,Zhang, YZ,Zhu, ZH,et al. Robustness of the Sunyaev-Zel[J]. CHINESE PHYSICS LETTERS,2001,18(4):622-624.
APA Cao, L,Zhang, YZ,Zhu, ZH,&Cao, L , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China..(2001).Robustness of the Sunyaev-Zel.CHINESE PHYSICS LETTERS,18(4),622-624.
MLA Cao, L,et al."Robustness of the Sunyaev-Zel".CHINESE PHYSICS LETTERS 18.4(2001):622-624.
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