The speed of Galileon gravity

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The speed of Galileon gravity

We analyse the speed of gravitational waves in coupled Galileon models with an equation of state ωphgr=−1 now and a ghost-free Minkowski limit. We find that the gravitational waves propagate much faster than the speed of light unless these models are small perturbations of cubic Galileons and the Ga...

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Bibliographic Details
Main Authors:	Brax, Philippe, Burrage, Clare, Davis, Anne-Christine
Format:	Article
Published:	IOPScience 2016
Subjects:	dark energy theory gravitational waves / theory modified gravity
Online Access:	https://eprints.nottingham.ac.uk/42092/

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