Author:
Saadati Reza,Giusti Andrea,Faraoni Valerio,Shojai Fatimah
Abstract
Abstract
We generate new spherical and time-dependent solutions of viable Horndeski gravity by
disforming a solution of the Einstein equations with scalar field source and positive cosmological
constant. They describe dynamical objects embedded in asymptotically FLRW spacetimes and contain
apparent horizons and a finite radius singularity that evolve in time in peculiar ways apparently
not encountered before in Einstein and “old” scalar-tensor gravity.
Subject
Astronomy and Astrophysics
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