Constraining Palatini–Horndeski theory with gravitational waves after GW170817

Abstract In this paper, we investigate the possible parameter space of Palatini–Horndeski theory with gravitational waves in a spatially flat Universe. We develop a general method for obtaining the speed of gravitational waves in the Palatini formalism in the cosmological background and we find that...

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Bibliographic Details
Main Authors: Yu-Qi Dong, Yu-Qiang Liu, Yu-Xiao Liu
Format: Article
Language:English
Published: SpringerOpen 2023-08-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11861-9