Turnaround physics beyond spherical symmetry
General Relativity and Quantum Cosmology
2021-03-03 v2 Cosmology and Nongalactic Astrophysics
Abstract
The concept of turnaround surface in an accelerating universe is generalized to arbitrarily large deviations from spherical symmetry, to close the gap between the idealized theoretical literature and the real world observed by astronomers. As an analytical application, the characterization of turnaround surface is applied to small deviations from spherical symmetry, recovering a previous result while extending it to scalar-tensor gravity.
Cite
@article{arxiv.1911.05130,
title = {Turnaround physics beyond spherical symmetry},
author = {Andrea Giusti and Valerio Faraoni},
journal= {arXiv preprint arXiv:1911.05130},
year = {2021}
}
Comments
15 pages, no figures, updated to match the published version