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题名: Constraints on the geometric and dynamic spatial curvature
作者: Yu Bo(余波)1, 2
刊名: PHYSICAL REVIEW D
出版日期: 2015-10-15
卷号: 92, 期号:8, 页码:8354
学科分类: 天文和天体物理
DOI: 10.1103/PhysRevD.92.083514
文章类型: Article
英文摘要: In this paper, the geometric and dynamic spatial curvature parameters of the Universe are constrained by type Ia supernova, baryon acoustic oscillation, and cosmic microwave background data. Compared with the previous result, a more stringent constraint is obtained, especially for the dynamic spatial curvature in the case of variable dark energy. No evidence is found that the geometric spatial curvature deviates from the dynamic spatial curvature, which is consistent with general relativity. In the case of dark energy with constant equation of state, it is found that -8.4 x 10(-3) <= Omega(geo)(K) <= 6.6 x 10(-3) (95% C.L.). This supports the hypothesis of a flat Universe in a very general meaning.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]: Astronomy & Astrophysics ; Physics
关键词[WOS]: BARYON ACOUSTIC-OSCILLATIONS ; DARK ENERGY ; UNIVERSE ; ANISOTROPIES ; CONSTANT ; SAMPLES ; MODEL
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000362901600003
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14873
Appears in Collections:南极天文中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
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