Do we live in a 'small universe'?

被引：46

作者：

Aurich, Ralf ^{[1
]}

Janzer, Holger S. ^{[1
]}

Lustig, Sven ^{[1
]}

Steiner, Frank ^{[1
]}

机构：

[1] Univ Ulm, Inst Theoret Phys, D-89069 Ulm, Germany

来源：

CLASSICAL AND QUANTUM GRAVITY | 2008年 / 25卷 / 12期

关键词：

D O I：

10.1088/0264-9381/25/12/125006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the effects of a compact flat universe on the angular correlation function, the angular power spectrum, the circles-in-the-sky signature, and the covariance matrix of the spherical harmonics coefficients of the cosmic microwave background radiation using the full Boltzmann physics. Our analysis shows that the Wilkinson Microwave Anisotropy Probe (WMAP) three-year data are very compatible with the possibility that we live in a flat 3-torus with volume similar or equal to 5 x 10(3) Gpc(3).

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页数：12

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