Friedmann-free limits on spatial curvature

Published 17 Jun 2011 in astro-ph.CO and gr-qc | (1106.3469v4)

Abstract: 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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Authors (1)

James Rich

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