Friedmann-free limits on spatial curvature

Details Friedmann-free limits on spatial curvature Friedmann-free limits on spatial curvature

2011-06-17

arxiv.org/abs/1106.3469v4

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

2 pages, zero figures, accepted by A&A

Scientific paper

We discuss limits on cosmological spatial curvature that can be derived
without imposing the geometry-density relation required by the Friedmann
equation. In particular, studies of the expansion history using stellar
evolution in passive galaxies imply a curvature radius greater than the Hubble
distance.

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