Stability of cosmic structures in scalar–tensor theories of gravity

Stability of cosmic structures in scalar–tensor theories of gravity

Abstract In the present work we study a concrete model of scalar–tensor theory of gravity characterized by two free parameters, and we compare its predictions to observational data and constraints coming from supernovae, solar system tests and the stability of cosmic structures. First an exact analy...

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Main Authors: Grigoris Panotopoulos, Ángel Rincón
Format: Article
Language:English
Published: SpringerOpen 2018-01-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-017-5470-9
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spelling doaj-19ceb02adba6443c9e6b89d606f5bece2020-11-25T02:00:25ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-01-017811610.1140/epjc/s10052-017-5470-9Stability of cosmic structures in scalar–tensor theories of gravityGrigoris Panotopoulos0Ángel Rincón1Centro Multidisciplinar de Astrofísica, Instituto Superior Técnico, Universidade de LisboaInstituto de Física, Pontificia Universidad Católica de ChileAbstract In the present work we study a concrete model of scalar–tensor theory of gravity characterized by two free parameters, and we compare its predictions to observational data and constraints coming from supernovae, solar system tests and the stability of cosmic structures. First an exact analytical solution at the background level is obtained. 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.http://link.springer.com/article/10.1140/epjc/s10052-017-5470-9
collection DOAJ
language English
format Article
sources DOAJ
author Grigoris Panotopoulos
Ángel Rincón
spellingShingle Grigoris Panotopoulos
Ángel Rincón
Stability of cosmic structures in scalar–tensor theories of gravity
European Physical Journal C: Particles and Fields
author_facet Grigoris Panotopoulos
Ángel Rincón
author_sort Grigoris Panotopoulos
title Stability of cosmic structures in scalar–tensor theories of gravity
title_short Stability of cosmic structures in scalar–tensor theories of gravity
title_full Stability of cosmic structures in scalar–tensor theories of gravity
title_fullStr Stability of cosmic structures in scalar–tensor theories of gravity
title_full_unstemmed Stability of cosmic structures in scalar–tensor theories of gravity
title_sort stability of cosmic structures in scalar–tensor theories of gravity
publisher SpringerOpen
series European Physical Journal C: Particles and Fields
issn 1434-6044
1434-6052
publishDate 2018-01-01
description Abstract In the present work we study a concrete model of scalar–tensor theory of gravity characterized by two free parameters, and we compare its predictions to observational data and constraints coming from supernovae, solar system tests and the stability of cosmic structures. First an exact analytical solution at the background level is obtained. 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.
url http://link.springer.com/article/10.1140/epjc/s10052-017-5470-9
work_keys_str_mv AT grigorispanotopoulos stabilityofcosmicstructuresinscalartensortheoriesofgravity
AT angelrincon stabilityofcosmicstructuresinscalartensortheoriesofgravity
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