Universe's Expansion Puts Limits on the Cosmic Time Scale Variations of Gravitational and Cosmological `Constants'

Details Universe's Expansion Puts Limits on the Cosmic Time Scale Variations of Gravitational and Cosmological `Constants' Universe's Expansion Puts Limits on the Cosmic Time Scale Variations of Gravitational and Cosmological `Constants'

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ap%26ss.272..417m&link_type=abstract

Astrophysics and Space Science, v. 272, Issue 4, p. 417-421 (2000).

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

Limits on cosmic time scale variations of gravitational and cosmological `constants' are studied. The study is based on a function which can measure the temporal variation of the magnitude of the gradient of any scalar field defined inside a medium exposed to a gravitational field. The cosmic time dependent scalar fields are taken to be the gravitational and cosmological `constants'. The medium; in which those scalar fields are defined; is taken to be the spatially perturbed Friedman-Robertson-Walker (FRW) expanding universe.

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