Cosmic topology of prism double-action manifolds

Cosmic topology of prism double-action manifolds
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棱镜双作用流形的宇宙拓扑

DOI:
10.1088/0264-9381/29/21/215005
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发表时间:
2012
影响因子:
3.5
通讯作者:
S. Lustig
S. Lustig
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
R. Aurich;S. Lustig

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研究了具有非平凡拓扑的球面三维空间中的宇宙微波背景辐射各向异性。本文讨论了一类特殊的所谓双作用流形,这是第一次分析其CMB各向异性。的CMB各向异性计算的所有棱镜双作用流形产生的二元二面角和循环群的组阶高达180导致33个不同的拓扑结构。几个空间被发现,表现出抑制的CMB各向异性的大角距离,因为它是发现在真实的CMB天空。事实证明,这些空间中的两个具有狄利克雷域,这些域与柏拉图或阿基米德等高度对称的多面体并不遥远。
The cosmic microwave background (CMB) anisotropies in spherical 3-spaces with a non-trivial topology are studied. This paper discusses the special class of the so-called double-action manifolds, which are for the first time analysed with respect to their CMB anisotropies. The CMB anisotropies are computed for all prism double-action manifolds generated by a binary dihedral and a cyclic group with a group order of up to 180 leading to 33 different topologies. Several spaces are found which show a suppression of the CMB anisotropies on large angular distances as it is found on the real CMB sky. It turns out that two of these spaces possess Dirichlet domains which are not very far from highly symmetric polyhedra like Platonic or Archimedean ones.
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发表时间: 2004
影响因子: 4.8
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影响因子: 4.8
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发表时间: 1999
期刊: arXiv: Cosmology and Nongalactic Astrophysics
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