The shape of space after WMAP data

The shape of space after WMAP data

What is the shape of space is a long-standing question in cosmology. I review recent advances in cosmic topology since it has entered a new era of experimental tests. High redshift surveys of astronomical sources and accurate maps of the Cosmic Microwave Background radiation (CMB) are beginning to hint at the shape of the universe, or at least to limit the wide range of possibilities. Among those possibilites are surprising "wrap around" universe models in which space, whatever its curvature, may be smaller than the observable universe and generate topological lensing effects on a detectable cosmic scale. In particular, the recent analysis of CMB data provided by the WMAP satellite suggest a finite universe with the topology of the Poincaré dodecahedral spherical space. Such a model of a "small universe", the volume of which would represent only about 80 % the volume of the observable universe, offers an observational signature in the form of a predictable topological lens effect on one hand, and rises new issues on the early universe physics on the other hand.

Saved in:
Bibliographic Details
Main Author: Luminet,Jean-Pierre
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Física 2006
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000200002
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:scielo:S0103-97332006000200002
record_format ojs
spelling oai:scielo:S0103-973320060002000022006-04-10The shape of space after WMAP dataLuminet,Jean-Pierre Cosmology Models of universe What is the shape of space is a long-standing question in cosmology. I review recent advances in cosmic topology since it has entered a new era of experimental tests. High redshift surveys of astronomical sources and accurate maps of the Cosmic Microwave Background radiation (CMB) are beginning to hint at the shape of the universe, or at least to limit the wide range of possibilities. Among those possibilites are surprising "wrap around" universe models in which space, whatever its curvature, may be smaller than the observable universe and generate topological lensing effects on a detectable cosmic scale. In particular, the recent analysis of CMB data provided by the WMAP satellite suggest a finite universe with the topology of the Poincaré dodecahedral spherical space. Such a model of a "small universe", the volume of which would represent only about 80 % the volume of the observable universe, offers an observational signature in the form of a predictable topological lens effect on one hand, and rises new issues on the early universe physics on the other hand.info:eu-repo/semantics/openAccessSociedade Brasileira de FísicaBrazilian Journal of Physics v.36 n.1b 20062006-03-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000200002en10.1590/S0103-97332006000200002
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Luminet,Jean-Pierre
spellingShingle Luminet,Jean-Pierre
The shape of space after WMAP data
author_facet Luminet,Jean-Pierre
author_sort Luminet,Jean-Pierre
title The shape of space after WMAP data
title_short The shape of space after WMAP data
title_full The shape of space after WMAP data
title_fullStr The shape of space after WMAP data
title_full_unstemmed The shape of space after WMAP data
title_sort shape of space after wmap data
description What is the shape of space is a long-standing question in cosmology. I review recent advances in cosmic topology since it has entered a new era of experimental tests. High redshift surveys of astronomical sources and accurate maps of the Cosmic Microwave Background radiation (CMB) are beginning to hint at the shape of the universe, or at least to limit the wide range of possibilities. Among those possibilites are surprising "wrap around" universe models in which space, whatever its curvature, may be smaller than the observable universe and generate topological lensing effects on a detectable cosmic scale. In particular, the recent analysis of CMB data provided by the WMAP satellite suggest a finite universe with the topology of the Poincaré dodecahedral spherical space. Such a model of a "small universe", the volume of which would represent only about 80 % the volume of the observable universe, offers an observational signature in the form of a predictable topological lens effect on one hand, and rises new issues on the early universe physics on the other hand.
publisher Sociedade Brasileira de Física
publishDate 2006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000200002
work_keys_str_mv AT luminetjeanpierre theshapeofspaceafterwmapdata
AT luminetjeanpierre shapeofspaceafterwmapdata
_version_ 1756407367686160384

Similar Items