P
Philippe Brax
Researcher at Université Paris-Saclay
Publications - 74
Citations - 2737
Philippe Brax is an academic researcher from Université Paris-Saclay. The author has contributed to research in topics: Scalar field & Dark energy. The author has an hindex of 23, co-authored 74 publications receiving 2474 citations. Previous affiliations of Philippe Brax include Centre national de la recherche scientifique & Institut d'Astrophysique de Paris.
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Unveiling the Galileon in a three-body system : scalar and gravitational wave production
TL;DR: In this paper, the authors consider a massive BH surrounded by a binary system of two smaller BHs and find that the scalar effects on the binary system are slightly enhanced with respect to the static case and a significant amount of power can be emitted in the form of the Galileon scalar field, hence actively participating in the inspiralling phase.
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Cosmological constant and kinetic supersymmetry breakdown on a moving brane
TL;DR: In this paper, the authors consider cosmological solutions in 5d locally supersymmetric theories including boundary actions, with either opposite tension branes for identical brane chiralities or equal tension brane for flipped brane CHs, and analyse the occurrence of supersymmetry breakdown in both situations.
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K-mouflage Imprints on Cosmological Observables and Data Constraints.
Giampaolo Benevento,Marco Raveri,Andrei Lazanu,Nicola Bartolo,Michele Liguori,Philippe Brax,Patrick Valageas +6 more
TL;DR: In this paper, cosmological constraints on K-mouflage models of modified gravity were investigated, and it was shown that these constraints could be significantly tightened with future ideal probes like CORE.
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Spin precession as a new window into disformal scalar fields
TL;DR: In this article, a light scalar field coupled both conformally and disformally to matter influences the evolution of spinning point-like bodies, and the spin-orbit and spin-spin effects accurate to leading order in a nonrelativistic and weak-field expansion are derived.
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Signatures of graviton masses on the CMB
TL;DR: In this article, the authors investigated the impact of the existence of gravitons with non-vanishing masses on the B modes of the Cosmic Microwave Background (CMB) and found that a change of the graviton speed shifts the acoustic peaks of the CMB and then could be easily constrained.