Galileons on Trial

Abstract

Galileon gravity is a robust theoretical alternative to general relativity with a cosmological constant for explaining cosmic acceleration, with interesting properties such as having second order field equations and a shift symmetry. While either its predictions for the cosmic expansion or growth histories can approach standard ΛCDM, we demonstrate the incompatibility of both doing so simultaneously. Already current observational constraints can severely disfavor an entire class of Galileon gravity models that do not couple directly to matter, ruling them out as an alternative to ΛCDM.

v2 matches JCAP version

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Cited by in corpus (47)

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• Dark energy in Horndeski theories after GW170817: A review
• Astrophysical Tests of Modified Gravity: Constraints from Distance Indicators in the Nearby Universe
• DBI Galileons in the Einstein Frame: Local Gravity and Cosmology
• Nonlinear structure formation in the Cubic Galileon gravity model
• The observational status of Galileon gravity after Planck
• Linear perturbations in Galileon gravity models
• Exploring Vainshtein mechanism on adaptively refined meshes
• Dynamical analysis of generalized Galileon cosmology
• Gravity in the Era of Equality: Towards solutions to the Hubble problem without fine-tuned initial conditions
• Constraining chameleon models with cosmology
• Self-accelerating universe in scalar-tensor theories after GW170817
• Spherical collapse in Galileon gravity: fifth force solutions, halo mass function and halo bias
• Simulating the quartic Galileon gravity model on adaptively refined meshes
• The parameter space in Galileon gravity models
• Stability of Horndeski vector-tensor interactions
• Halo model and halo properties in Galileon gravity cosmologies
• Galaxy Infall Kinematics as a Test of Modified Gravity
• Disformal transformation of cosmological perturbations
• Screening the fifth force in the Horndeski's most general scalar-tensor theories
• Consistent perturbations in an imperfect fluid
• Dark energy scenario consistent with GW170817 in theories beyond Horndeski gravity
• Matter bispectrum in cubic Galileon cosmologies
• Cosmology in generalized Horndeski theories with second-order equations of motion
• Speeding up $N$-body simulations of modified gravity: Chameleon screening models
• Constraints on f(R) theory and Galileons from the latest data of galaxy redshift surveys
• Experimental constraints on the uncoupled Galileon model from SNLS3 data and other cosmological probes
• Gravity at the horizon: on relativistic effects, CMB-LSS correlations and ultra-large scales in Horndeski's theory
• The Speed of Galileon Gravity
• Simulations of Galileon modified gravity: Clustering statistics in real and redshift space
• Testing for dynamical dark energy models with redshift-space distortions
• Constraining the $\Lambda$CDM and Galileon models with recent cosmological data
• First experimental constraints on the disformally coupled Galileon model
• Cartan gravity, matter fields, and the gauge principle
• Cosmology with a successful Vainshtein screening in theories beyond Horndeski
• Lunar Laser Ranging constraints on nonminimally coupled dark energy and standard sirens
• Bounce and cyclic cosmology in weakly broken galileon theories
• Alleviating $H_0$ tension in scalar-tensor and bi-scalar-tensor theories
• Quantum Stability of Generalized Proca Theories
• Evading the theoretical no-go theorem for nonsingular bounces in Horndeski/Galileon cosmology
• Beyond the growth rate of cosmic structure: Testing modified gravity models with an extra degree of freedom
• Cosmological Tests of Coupled Galileons
• Disformal transformations on the CMB
• The parameter space of Cubic Galileon models for cosmic acceleration
• Dynamical system analysis in modified Galileon cosmology
• Characterising Dark Energy through supernovae