A modified Friedmann equation for a system with varying gravitational mass
Abstract
The Laser Interferometer Gravitational-Wave Observatory (LIGO) detection of gravitational waves that take away 5% of the total mass of two merging black holes points out on the importance of considering varying gravitational mass of a system. Using an assumption that the energy-momentum pseudo-tensor of gravitational waves is not considered as a source of gravitational field, we analyse a perturbation of the Friedmann-Robertson-Walker metric caused by the varying gravitational mass of a system. This perturbation leads to a modified Friedmann equation that contains a term similar to the 'cosmological constant'. Theoretical estimates of the effective cosmological constant quantitatively corresponds to observed cosmological acceleration.
Keywords
Cite
@article{arxiv.1804.02988,
title = {A modified Friedmann equation for a system with varying gravitational mass},
author = {Nick Gorkavyi and Alexander Vasilkov},
journal= {arXiv preprint arXiv:1804.02988},
year = {2018}
}
Comments
Published in MNRAS, 476, 1 May 2018