中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 星系宇宙学和暗能量研究团组  > 期刊论文
题名: The primordial non-Gaussianity of local type (flocal(NL)) in the WMAP 5-year data: the length distribution of CMB skeleton
作者: Hou, Zhen1, 2, 3, 4; Banday, A. J.2, 5; Gorski, Krzysztof M.6, 7, 8; Elsner, Franz2; Wandelt, Benjamin D.9, 10
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2010-10-01
卷号: 407, 期号:4, 页码:2141-2156
关键词: methods: data analysis ; cosmic background radiation
DOI: 10.1111/j.1365-2966.2010.17098.x
文章类型: Article
英文摘要: We present skeleton studies of non-Gaussianity in the cosmic microwave background temperature anisotropy observed in the 5-yr Wilkinson Microwave Anisotropy Probe (WMAP) data. The local skeleton is traced on the 2D sphere by cubic spline interpolation which leads to more accurate estimation of the intersection positions between the skeleton and the secondary pixels than conventional linear interpolation. We demonstrate that the skeleton-based estimator of non-Gaussianity of the local type (flocal(NL)) - the departure of the length distribution from the corresponding Gaussian expectation - yields an unbiased and sufficiently converged likelihood function for flocal(NL).
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: MICROWAVE BACKGROUND MAPS ; LARGE-SCALE STRUCTURE ; MINKOWSKI FUNCTIONALS ; INFLATIONARY UNIVERSE ; FOREGROUND EMISSION ; PERTURBATION-THEORY ; PROBE ; TEMPERATURE ; ANISOTROPIES
收录类别: SCI
语种: 英语
WOS记录号: WOS:000281948100009
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15941
Appears in Collections:星系宇宙学和暗能量研究团组_期刊论文

Files in This Item:

There are no files associated with this item.


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.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
5.Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France
6.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
7.CALTECH, Pasadena, CA 91125 USA
8.Univ Warsaw Observ, PL-00478 Warsaw, Poland
9.Univ Illinois, Dept Phys, Urbana, IL 61801 USA
10.Univ Illinois, Dept Astron, Urbana, IL 61801 USA
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Hou, Zhen]'s Articles
[Banday, A. J.]'s Articles
[Gorski, Krzysztof M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Hou, Zhen]‘s Articles
[Banday, A. J.]‘s Articles
[Gorski, Krzysztof M.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace