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Pseudo-dipole signal removal from WMAP data
Liu H(刘浩); Li TB(李惕碚); Liu, H; Li, TP
2011
发表期刊CHINESE SCIENCE BULLETIN
卷号56期号:1页码:#REF!
通讯作者Liu, H (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China.
文章类型Article
摘要We have discovered in our previous work that different observational systematics, e.g. errors from antenna pointing directions or an asynchronism between the attitude and science data may generate a pseudo-dipole signal in the full-sky maps of the cosmic microwave background (CMB) anisotropy that have been published by the Wilkinson Microwave Anisotropy Probe (WMAP) team. We have found that the antenna sidelobe response to the Doppler signal produces a similar effect. In this work, independent from the sources, we have uniformly modeled the pseudo-dipole signal and have removed it from the published WMAP7 CMB maps by model fitting. The result demonstrates that the released WMAP CMB quadrupole is almost completely artificial.
关键词cosmology cosmic microwave background data analysis
学科领域Science & Technology - Other Topics
DOI10.1007/s11434-010-4222-0
收录类别SCI
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000286550000007
引用统计
被引频次:6[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/311005/225612
专题院士
粒子天体物理中心
推荐引用方式
GB/T 7714
Liu H,Li TB,Liu, H,et al. Pseudo-dipole signal removal from WMAP data[J]. CHINESE SCIENCE BULLETIN,2011,56(1):#REF!.
APA 刘浩,李惕碚,Liu, H,&Li, TP.(2011).Pseudo-dipole signal removal from WMAP data.CHINESE SCIENCE BULLETIN,56(1),#REF!.
MLA 刘浩,et al."Pseudo-dipole signal removal from WMAP data".CHINESE SCIENCE BULLETIN 56.1(2011):#REF!.
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