A special kind of local structure in the CMB intensity maps: duel peak structure

	A special kind of local structure in the CMB intensity maps: duel peak structure
	Liu H(刘浩); Li TB(李惕碚); Liu, H; Li, TP
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2009
卷号	9 期号:3 页码:#REF!
关键词	cosmic microwave background cosmology: observations methods: data analysis
通讯作者	Liu, H (reprint author), Chinese Acad Sci, Key Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要	We study the local structure of Cosmic Microwave Background (CMB) temperature maps released by the Wilkinson Microwave Anisotropy Probe (WMAP) team, and find a new kind of structure, which can be described as follows: a peak (or valley) of average temperature is often followed by a peak of temperature fluctuation that is 4 degrees away. This structure is important for the following reasons: both the well known cold spot detected by Cruz et al. and the hot spot detected by Vielva et al. with the same technology (the third spot in their article) have such structure; more spots that are similar to them can be found on CMB maps and they also tend to be significant cold/hot spots; if we change the 4 degrees characteristic into an artificial one, such as 3 degrees or 5 degrees, there will be less "similar spots", and the temperature peaks or valleys will be less significant. The presented "similar spots" have passed a strict consistency test which requires them to be significant on at least three different CMB temperature maps. We hope that this article could arouse some interest in the relationship of average temperature with temperature fluctuation in local areas; meanwhile, we are also trying to find an explanation for it which might be important to CMB observation and theory.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
收录类别	SCI
WOS记录号	WOS:000264845200004
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227522]
专题	高能物理研究所_院士高能物理研究所_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. A special kind of local structure in the CMB intensity maps: duel peak structure[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(3):#REF!.
APA	刘浩,李惕碚,Liu, H,&Li, TP.(2009).A special kind of local structure in the CMB intensity maps: duel peak structure.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(3),#REF!.
MLA	刘浩,et al."A special kind of local structure in the CMB intensity maps: duel peak structure".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.3(2009):#REF!.