What the small angle CMB really tells us about the curvature of the Universe

It is well known that observations of the cosmic microwave background (CMB) are highly sensitive to the spatial curvature of the Universe, k. Here we find that what is in fact being tightly constrained by small angle fluctuations is spatial curvature near the surface of last scattering, and that if...

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Bibliographic Details
Main Authors: Clifton, T, Ferreira, P, Zuntz, J
Format: Journal article
Published: 2009