WHICH FLRW COMOVING 3-MANIFOLD IS PREFERRED OBSERVATIONALLY AND THEORETICALLY?

2010/02/18 by Boudewijn F. Roukema
Engineering · Physics and Astronomy · #Astronomy #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Engineering #Friedmann–Lemaître–Robertson–Walker metric #Galaxies: Formation, Evolution, Phenomena #Manifold (fluid mechanics) #Physics #astro-ph.CO

paper · pdf · doi:10.1142/9789814374552_0210

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

arxiv created 2010/02/18 · openalex publication_date 2012/02/01 · openalex created_date 2016/06/24 · arxiv updated 2016/11/15 · openalex updated_date 2026/08/05

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 S³/I^* and the 3-torus T³. 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.

Citations

• Predicting the CMB power spectrum for binary polyhedral spaces
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