First experimental constraints on the disformally coupled Galileon model

2014/03/31 by J. Neveu, V. Ruhlmann-Kleider, P. Astier +8 · 1 citation
Engineering · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Context (archaeology) #Cosmological model #Cosmology #Cosmology and Gravitation Theories #Coupling (piping) #Engineering #Galaxies: Formation, Evolution, Phenomena #Geology #Physics #Quantum mechanics #Theoretical physics #Universe #Work (physics) #astro-ph.CO #gr-qc

paper · pdf · doi:10.1051/0004-6361/201423758

published as A&A 569, A90 (2014) · 9 pages, 6 figures, updated version

openalex publication_date 2014/08/25 · arxiv created 2014/11/06 · arxiv updated 2014/11/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Aims. The Galileon model is a modified gravity model that can explain the late-time accelerated expansion of the Universe. In a previous work, we derived experimental constraints on the Galileon model with no explicit coupling to matter and showed that this model agrees with the most recent cosmological data. In the context of braneworld constructions or massive gravity, the Galileon model exhibits a disformal coupling to matter, which we study in this paper.

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• Gravitational effects of disformal couplings