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A cross-correlation analysis of WMAP and EGRET data in wavelet space
Liu X(刘鑫); Zhang SN(张双南); Liu, X; Zhang, SN
2006
发表期刊ASTROPHYSICAL JOURNAL
卷号636期号:1页码:L1-L4
通讯作者Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China ; Tsing Hua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100039, Peoples R China ; Univ Alabama, Dept Phys, Huntsville, AL 35899 USA ; NASA, George C Marshall Space Flight Ctr, Space Sci Lab, Huntsville, AL 35812 USA
文章类型Article
摘要We cross-correlate the first-year Wilkinson Microwave Anisotropy Probe (WMAP) data and the diffuse gamma-ray intensity maps from the Energetic Gamma-Ray Experiment Telescope (EGRET) using spherical-wavelet approaches. Correlations at the 99.7% significance level have been detected, at scales around 15 degrees in the WMAP foreground-cleaned W-band and Q-band maps, based on data from regions that are outside the most conservative WMAP foreground mask; no significant correlation is found with the Tegmark cleaned map. The detected correlation is most likely of Galactic origin and thus can help probe the origins of possible Galactic foreground residuals and ultimately remove them from measured microwave sky maps.
关键词cosmic microwave background cosmic rays diffuse radiation methods : data analysis
学科领域Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
DOI10.1086/499804
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000234289100001
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240232
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Liu X,Zhang SN,Liu, X,et al. A cross-correlation analysis of WMAP and EGRET data in wavelet space[J]. ASTROPHYSICAL JOURNAL,2006,636(1):L1-L4.
APA 刘鑫,张双南,Liu, X,&Zhang, SN.(2006).A cross-correlation analysis of WMAP and EGRET data in wavelet space.ASTROPHYSICAL JOURNAL,636(1),L1-L4.
MLA 刘鑫,et al."A cross-correlation analysis of WMAP and EGRET data in wavelet space".ASTROPHYSICAL JOURNAL 636.1(2006):L1-L4.
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