Cosmic Microwave Background in Closed Multiply Connected Universes

Details Cosmic Microwave Background in Closed Multiply Connected Universes Cosmic Microwave Background in Closed Multiply Connected Universes

2000-11-29

arxiv.org/abs/astro-ph/0011539v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures (2 EPS files), to appear in Proceedings of the 10th JGRG Meeting, held at Osaka Univ., Osaka, 11-14 Sep. 20

Scientific paper

We have investigated the cosmic microwave background (CMB) anisotropy in closed multiply connected universes (flat and hyperbolic) with low matter density. We show that the COBE constraints on these low matter density models with non-trivial topology are less stringent since a large amount of CMB anisotropy on large angular scales can be produced due to the decay of the gravitational potential at late time.

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