Difficulties in reconciling non-negligible differences between the local and cosmological values of the gravitational coupling in extended Brans-Dicke theories

Abstract

Recent studies by Solà Peracaula, Gómez-Valent, de Cruz Pérez and Moreno-Pulido (2019,2020) have pointed out the intriguing possibility that Brans-Dicke cosmology with constant vacuum energy density (BD-$\Lambda$CDM) may be able to alleviate the $H_0$ and ${\sigma }_8$ tensions that are found in the framework of the concordance cosmological model (GR-$\Lambda$CDM). The fitting analyses presented in these works indicate a preference for values of the effective gravitational coupling appearing in the Friedmann equation, $G$, about $4-9\%$ larger than Newton's constant (as measured on Earth), and mildy evolving with the expansion of the universe. The signal reaches the $\sim 3.5\sigma$ c.l. when the prior on $H_0$ from SH0ES and the angular diameter distances to strong gravitationally lensed quasars measured by H0LICOW are considered, and the $\sim 3\sigma$ c.l. when only the former is included. Thus, the improvement in the description of the cosmological datasets relies on the existence of a mechanism capable of screening the modified gravity effects at those scales where deviations from standard General Relativity (GR) are highly constrained, as in the Solar System. In this paper we explore several extensions of BD-$\Lambda$CDM that can leave the cosmological evolution basically unaltered at the background and linear perturbations level, while being able to screen the Brans-Dicke effects inside the regions of interest, leading to standard GR. We search for weak-field solutions around spherical static massive objects with no internal pressure and show that, unfortunately, these mechanisms can only explain very tiny departures of the effective cosmological gravitational coupling from the one measured locally. This might hinder the ability of BD-$\Lambda$CDM to alleviate the cosmological tensions.

arXiv commentAccepted for publication in JCAP. 22 pages and 3 figures. It contains some additional comments and references

References in corpus (58)

• The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
• Chameleon Cosmology
• Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Tensions between the Early and the Late Universe
• H0LiCOW XIII. A 2.4% measurement of $H_0$ from lensed quasars: $5.3\sigma$ tension between early and late-Universe probes
• Early Dark Energy Can Resolve The Hubble Tension
• Dark Energy after GW170817: dead ends and the road ahead
• Everything You Always Wanted To Know About The Cosmological Constant Problem (But Were Afraid To Ask)
• Dark Energy after GW170817 and GRB170817A
• Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with LambdaCDM
• KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints
• Symmetron Fields: Screening Long-Range Forces Through Local Symmetry Restoration
• Primordial Nucleosynthesis in the Precision Cosmology Era
• Cosmology Intertwined II: The Hubble Constant Tension
• The Expansion of the Universe is Faster than Expected
• Cosmology Intertwined III: $f{\sigma }_8$ and $S_8$
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies
• Early Dark Energy Does Not Restore Cosmological Concordance
• Cosmological constant and vacuum energy: old and new ideas
• A Lower Growth Rate from Recent Redshift Space Distortion Measurements than Expected from Planck
• KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
• An Improved Distance to NGC 4258 and its Implications for the Hubble Constant
• k-Mouflage gravity
• Elucidating $\Lambda$CDM: Impact of Baryon Acoustic Oscillation Measurements on the Hubble Constant Discrepancy
• Tension and constraints on modified gravity parametrizations of $G_{\text{eff}}(z)$ from growth rate and Planck data
• Self-Accelerating Universe in Galileon Cosmology
• Measuring the Hubble constant with Type Ia supernovae as near-infrared standard candles
• Cosmic variance and the measurement of the local Hubble parameter
• Possible signals of vacuum dynamics in the Universe
• Early modified gravity in light of the $H_0$ tension and LSS data
• A blinded determination of $H_0$ from low-redshift Type Ia supernovae, calibrated by Cepheid variables
• Cosmological constraints on Brans-Dicke theory
• Brans-Dicke gravity with a cosmological constant smoothes out $\Lambda$CDM tensions
• Scalar-tensor theories of gravity, neutrino physics, and the $H_0$ tension
• Constraints on Shift-Symmetric Scalar-Tensor Theories with a Vainshtein Mechanism from Bounds on the Time Variation of G
• Running vacuum against the $H_0$ and ${\sigma }_8$ tensions
• Density perturbations for running vacuum: a successful approach to structure formation and to the ${\sigma }_8$-tension
• Spherical Collapse and the Halo Model in Braneworld Gravity
• Determining $H_0$ with Bayesian hyper-parameters
• A Lockdown Perspective on the Hubble Tension (with comments from the SH0ES team)
• The impact of the cosmic variance on $H_0$ on cosmological analyses
• Arguments against using $h^{-1}\mathrm{Mpc}$ units in observational cosmology
• Brans-Dicke cosmology with a $\Lambda$- term: a possible solution to $\Lambda$CDM tensions
• CMB and BAO constraints for an induced gravity dark energy model with a quartic potential
• KiDS+VIKING-450: Improved cosmological parameter constraints from redshift calibration with self-organising maps
• A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite
• Constraints on the Brans-Dicke gravity theory with the Planck data
• Cosmological constraints on induced gravity dark energy models
• The Hubble constant from eight time-delay galaxy lenses
• Testing Brans-Dicke Gravity with Screening by Scalar Gravitational Wave Memory
• Inspecting the Cepheid distance ladder: The Hubble Space Telescope distance to the SNIa host galaxy NGC 5584
• Brans-Dicke cosmology mimicking running vacuum
• Growth of structure in interacting vacuum cosmologies
• Cosmological Constraints on the Gravitational Interactions of Matter and Dark Matter
• K-mouflage Imprints on Cosmological Observables and Data Constraints
• Brans-Dicke gravity: from Higgs physics to (dynamical) dark energy
• The effect of interacting dark energy on local measurements of the Hubble constant
• Double screening

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