Reconstructing the global topology of the universe from the cosmic microwave background

Details Reconstructing the global topology of the universe from the cosmic microwave background Reconstructing the global topology of the universe from the cosmic microwave background

1998-02-02

arxiv.org/abs/astro-ph/9802012v1

Class.Quant.Grav. 15 (1998) 2599-2604

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures, IOP format. To be published in the proceedings of the Cleveland Cosmology and Topology Workshop 17-19 Oct

Scientific paper

10.1088/0264-9381/15/9/007

If the universe is multiply-connected and sufficiently small, then the last
scattering surface wraps around the universe and intersects itself. Each circle
of intersection appears as two distinct circles on the microwave sky. The
present article shows how to use the matched circles to explicitly reconstruct
the global topology of space.

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