Limits on deviations from the inverse-square law on megaparsec scales

Details Limits on deviations from the inverse-square law on megaparsec scales Limits on deviations from the inverse-square law on megaparsec scales

2004-04-06

arxiv.org/abs/astro-ph/0404111v2

Phys.Rev. D71 (2005) 083004

Astronomy and Astrophysics

Astrophysics

7 pages, 3 figures. Replaced with published version

Scientific paper

10.1103/PhysRevD.71.083004

We present an attempt to constrain deviations from the gravitational inverse-square law on large-scale structure scales. A perturbed law modifies the Poisson equation, which implies a scale-dependent growth of overdensities in the linear regime and thus modifies the power spectrum shape. We use two large-scale structure surveys (the Sloan Digital Sky survey and the Anglo-Australian Two-degree field galaxy redshift survey) to constrain the parameters of two simple modifications of the inverse-square law. We find no evidence for deviations from normal gravity on the scales probed by these surveys (~ 10^(23) m.)

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