Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1996-04-26
Astron.Astrophys.313:339-346,1996
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
to appear in Astronomy and Astrophysics. Contains 11 pages, 14 Postscript figures, use A&A LaTeX macros package (l-aa.sty). Co
Scientific paper
We assume that the Universe has a non trivial topology whose compact spatial sections have a volume significantly smaller than the horizon volume. By a topological lens effect, such a "folded" space configuration generates multiple images of cosmic sources, e.g. clusters of galaxies. We present a simple and powerful method to unveil non ambiguous observational effects, independently of the sign of the curvature and of the topological type.
Lachièze-Rey Marc
Lehoucq Roland
Luminet Jean-Pierre
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