http://arxiv.org/abs/2303.17213
We demonstrate that it is possible to test models of gravity, such as Palatini $f(R)$ and Eddington-inspired Born-Infeld models, using seismic data from Earth. By incorporating additional limitations on Earth’s moment of inertia and mass given from observational data, the models’ parameters can be restricted to a $2\sigma$ level of accuracy. Our novel tool provides that $\beta\lesssim 10^9 \text{m}^2$ for Palatini and $\epsilon\lesssim 4\cdot 10^9 \text{m}^2$ for Eddington-inspired Born-Infeld gravity. We also discuss further enhancements to the proposed method, aimed at imposing even more stringent constraints on modified gravity proposals.
A. Kozak and A. Wojnar
Fri, 31 Mar 23
67/70
Comments: 10 pages, 3 figures