New time-dependent solutions of viable Horndeski gravity
General Relativity and Quantum Cosmology
2022-10-05 v1 High Energy Physics - Theory
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.
Keywords
Cite
@article{arxiv.2207.07060,
title = {New time-dependent solutions of viable Horndeski gravity},
author = {Reza Saadati and Andrea Giusti and Valerio Faraoni and Fatimah Shojai},
journal= {arXiv preprint arXiv:2207.07060},
year = {2022}
}
Comments
17 pages, 2 figures