Which FLRW comoving 3-manifold is preferred observationally and theoretically?

Abstract

The lack of structure greater than 10 Gpc/h in Wilkinson Microwave Anisotropy Probe (WMAP) observations of the cosmic microwave background (CMB) favours compact Friedmann-Lemaitre-Robertson-Walker (FLRW) models of the Universe. The present best candidates based on observations are the Poincare dodecahedral space S^3/I^* and the 3-torus T^3. The residual gravity effect favours the Poincare space, while a measure space argument where the density parameter is a derived parameter favours flat spaces almost surely.

3 pages, Twelfth Marcel Grossmann Meeting on General Relativity, ed. Thibault Damour, Robert T Jantzen, Remo Ruffini, Singapore: World Scientific

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Cited by in corpus (2)

• The Topology and Size of the Universe from CMB Temperature and Polarization Data
• The Topology and Size of the Universe from the Cosmic Microwave Background