A Note on the Robustness of Pair Separations Methods in Cosmic Topology

Details A Note on the Robustness of Pair Separations Methods in Cosmic Topology A Note on the Robustness of Pair Separations Methods in Cosmic Topology

2004-03-24

arxiv.org/abs/astro-ph/0403586v1

Proc. of the Tenth Marcell Grossmann Meeting on General Relativity. Part C, pages1657-1660. Eds. M. Novello, S.E. Perez Bergli

Astronomy and Astrophysics

Astrophysics

To appear in the Proc. of 10th Marcel Grossmann Meeting on General Relativity. Latex2e, World Scientific proc. style files, 2

Scientific paper

The pair separations statistical methods devised to detect the topology of the universe rely on the accurate knowledge of the three-dimensional positions of the cosmic sources. The determination of these positions, however, involves inevitable observational uncertainties. The only significant (measurable) sign of a nontrivial topology in PSH's was shown to be spikes. We briefly report our results concerning the sensitivity of the topological spikes in the presence of the uncertainties in the positions of the cosmic sources, which arise from uncertainties in the values of the density parameters.

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