Stability of cosmic structures in scalar-tensor theories of gravity
arXiv:1710.02485 · doi:10.1140/epjc/s10052-017-5470-9
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.
v2: 6 pages, 6 figures, references added, improved introduction, to appear in: The European Physical Journal C
References in corpus (9)
- Dynamics of dark energy
- Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
- Shapiro delay measurement of a two solar mass neutron star
- Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
- Measuring the Speed of Dark: Detecting Dark Energy Perturbations
- A regular scale-dependent black hole solution
- Reconstruction of Scalar Potentials in Modified Gravity Models
- Evolution of Dark Energy Perturbations in Scalar-Tensor Cosmologies
- Scalar field descriptions of two dark energy models
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- Anisotropic stars made of exotic matter within the complexity factor formalism
- Radial oscillations and tidal Love numbers of dark energy stars
- Gravitational decoupling and superfluid stars
- Lagrangian formulation for an extended cosmological equation-of-state
- Correlation of structure growth index with current cosmic acceleration: constraints on dark energy models
- Evolution of matter perturbations in the context of cosmic slowing down