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题名: Frequentist comparison of CMB local extrema statistics in the five-year WMAP data with two anisotropic cosmological models
作者: Hou, Zhen1, 2, 3; Banday, A. J.2, 4; Gorski, K. M.5, 6, 7; Groeneboom, N. E.8; Eriksen, H. K.8, 9
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2010-02-01
卷号: 401, 期号:4, 页码:2379-2387
关键词: methods: data analysis ; cosmic microwave background
DOI: 10.1111/j.1365-2966.2009.15866.x
文章类型: Article
英文摘要: We present local extrema studies of two models that introduce a preferred direction into the observed cosmic microwave background temperature field. In particular, we make a frequentist comparison of the one- and two-point statistics for the dipole modulation and ACW models with data from the five-year Wilkinson Microwave Anisotropy Probe (WMAP). This analysis is motivated by previously revealed anomalies in the WMAP data, and particularly the difference in the statistical nature of the temperature anisotropies when analysed in hemispherical partitions.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: HEMISPHERICAL POWER ASYMMETRY ; PROBE SKY MAPS ; GAUSSIAN STATISTICS ; COLD SPOTS ; FULL-SKY ; MICROWAVE ; PEAKS ; HOT ; FLUCTUATIONS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000273687800018
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15943
Appears in Collections:星系宇宙学和暗能量研究团组_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Max Planck Inst Astrophys, D-85741 Garching, Germany
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France
5.Jet Prop Lab, Pasadena, CA 91109 USA
6.CALTECH, Pasadena, CA 91125 USA
7.Univ Warsaw Observ, PL-00478 Warsaw, Poland
8.Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway
9.Univ Oslo, Ctr Math Applicat, N-0316 Oslo, Norway
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