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- W3098518118 abstract "Cosmic microwave background data shows the observable universe to be nearly flat, but leaves open the question of whether it is simply or multiply connected. Several authors have investigated whether the topology of a multiconnected hyperbolic universe would be detectable when 0.9<Ω<1. However, the possibility of detecting a given topology varies depending on the location of the observer within the space. Recent studies have assumed the observer sits at a favorable location. The present paper extends that work to consider observers at all points in the space, and (for given values of Ω m and Ω Λ and a given topology) computes the probability that a randomly placed observer could detect the topology. The computations show that when Ω=0.98 a randomly placed observer has a reasonable chance (~50%) of detecting a hyperbolic topology, but when Ω=0.99 the chances are low (<10%) and decrease still further as Ω approaches one." @default.
- W3098518118 created "2020-11-23" @default.
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- W3098518118 date "2003-09-28" @default.
- W3098518118 modified "2023-09-27" @default.
- W3098518118 title "Detecting Topology in a Nearly Flat Hyperbolic Universe" @default.
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- W3098518118 doi "https://doi.org/10.1142/s021773230301212x" @default.
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