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Cross-correlation detection of point sources in the WMAP first year data
Nie, JY; Zhang SN(张双南); Zhang, SN
2007
发表期刊CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
卷号7期号:2页码:#REF!
通讯作者Nie, JY (reprint author), Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
摘要We apply a Cross-Correlation (CC) method developed previously for detecting gamma-ray point sources to the WMAP first year data by using the Point-Spread Function of WMAP and obtain a full sky CC coefficient map. We find that the CC method is a powerful tool to examine the WMAP foreground residuals which can be further cleaned accordingly. Evident foreground signals are found in the WMAP foreground cleaned maps and the Tegmark cleaned map. In this process 101 point sources are detected, and 26 of them are new sources additional to the originally listed WMAP 208 sources. We estimate the flux of these new sources and verify them by another method. As a result, a revised mask file based on the WMAP first year data is produced by including these new sources.
文章类型Article
关键词cosmic microwave background : WMAP cross-correlation radio point source
学科领域Astronomy & Astrophysics
DOI10.1088/1009-9271/7/2/03
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000246129300003
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被引频次:5[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/311005/226889
专题粒子天体物理中心
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GB/T 7714
Nie, JY,Zhang SN,Zhang, SN. Cross-correlation detection of point sources in the WMAP first year data[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(2):#REF!.
APA Nie, JY,张双南,&Zhang, SN.(2007).Cross-correlation detection of point sources in the WMAP first year data.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(2),#REF!.
MLA Nie, JY,et al."Cross-correlation detection of point sources in the WMAP first year data".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.2(2007):#REF!.
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