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题名: Robustness of the Sunyaev-Zel
作者: Cao, L ;  Zhang, YZ ;  Zhu, ZH
刊名: CHINESE PHYSICS LETTERS
出版日期: 2001
卷号: 18, 期号:4, 页码:622-624
关键词: DARK-MATTER HALO ;  GALAXY CLUSTERS ;  DENSITY PROFILE ;  GAS-DENSITY
学科分类: Physics
通讯作者: Cao, L , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12783
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Cao, L,Zhang, YZ,Zhu, ZH. Robustness of the Sunyaev-Zel[J]. CHINESE PHYSICS LETTERS,2001,18(4):622-624.
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