Stability of cosmic structures in scalar-tensor theories of gravity
Cosmology and Nongalactic Astrophysics
2018-02-14 v2
Abstract
In the present work we study a concrete model of Scalar--Tensor theory of gravity characterized by two free parameters, and compare its predictions against observational data and constraints coming from supernovae, solar system tests as well as the stability of cosmic structures. First an exact analytical solution at the background level is obtained. Then using that solution the expression for the turnaround radius is computed. Finally we show graphically how current data and limits put bounds on the parameters of the model at hand.
Keywords
Cite
@article{arxiv.1710.02485,
title = {Stability of cosmic structures in scalar-tensor theories of gravity},
author = {Grigoris Panotopoulos and Angel Rincon},
journal= {arXiv preprint arXiv:1710.02485},
year = {2018}
}
Comments
v2: 6 pages, 6 figures, references added, improved introduction, to appear in: The European Physical Journal C