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The Effective Field Theory of Dark Energy Diagnostic of Linear Horndeski Theories After GW170817 and GRB170817A

by Louis Perenon 1,2,* and Hermano Velten 3,*
1
Department of Physics & Astronomy, University of the Western Cape, Cape Town 7535, South Africa
2
Cosmology and Gravity Group, Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
3
Departamento de Física, Universidade Federal de Ouro Preto, Ouro Preto MG 35400-000, Brazil
*
Authors to whom correspondence should be addressed.
Universe 2019, 5(6), 138; https://doi.org/10.3390/universe5060138
Received: 2 May 2019 / Revised: 29 May 2019 / Accepted: 31 May 2019 / Published: 4 June 2019
We summarize the effective field theory of dark energy construction to explore observable predictions of linear Horndeski theories. We review the diagnostic of these theories on the correlation of the large-scale structure phenomenological functions: the effective Newton constant, the light deflection parameter, and the growth function of matter perturbations. We take this opportunity to discuss the evolution of the bounds the propagation speed of gravitational waves has undergone and use the most restrictive one to update the diagnostic. View Full-Text
Keywords: dark energy; modified gravity; large-scale structures dark energy; modified gravity; large-scale structures
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Perenon, L.; Velten, H. The Effective Field Theory of Dark Energy Diagnostic of Linear Horndeski Theories After GW170817 and GRB170817A. Universe 2019, 5, 138.

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