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2019

Spatial Curvature in Cosmology Revisited

Coley, A. A.

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Understand

It is necessary to make assumptions in order to derive models to be used for cosmological predictions and comparison with observational data.

In particular, in standard cosmology the spatial curvature is assumed to be constant and zero (or at least very small).
But there is, as yet, no fully independent constraint with an appropriate accuracy that gaurentees a value for the magnitude of the effective normalized spatial curvature $\Omega_{k}$ of less than approximately $0.01$.
Moreover, a small non-zero measurement of $\Omega_{k}$ at such a level perhaps indicates that the assumptions in the standard model are not satisfied.

Spatial Curvature in Cosmology Revisited · Around

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