What can the detection of a single pair of circles-in-the-sky tell us about the geometry and topology of the UniverseReportar como inadecuado



 What can the detection of a single pair of circles-in-the-sky tell us about the geometry and topology of the Universe


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In a Universe with a detectable nontrivial spatial topology the last scattering surface contains pairs of matching circles with the same distribution of temperature fluctuations - the so-called circles-in-the-sky. Searches undertaken for nearly antipodal pairs of such circles in cosmic microwave background maps have so far been unsuccessful. Previously we had shown that the negative outcome of such searches, if confirmed, should in principle be sufficient to exclude a detectable non-trivial spatial topology for most observers in very nearly flat $0



Autor: B. Mota; M. J. Reboucas; R. Tavakol

Fuente: https://archive.org/



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