INPOP Planetary ephemerides and applications in the frame of the BepiColombo mission including new constraints on the graviton mass and dilaton parameters

TL;DR

This paper uses INPOP planetary ephemerides and BepiColombo simulations to refine tests of general relativity, constrain the graviton mass, and explore dilaton parameters, advancing our understanding of fundamental physics.

Contribution

It provides new constraints on PPN parameters, graviton mass, and dilaton parameters using planetary ephemerides and BepiColombo data, including potential solar core rotation detection.

Findings

Tighter limits on PPN parameters β and γ.

New bounds on the graviton mass.

Acceptable intervals for dilaton parameters α₀, α_T, α_G.

Abstract

We present here the new results obtained with the INPOP planetary ephemerides and BepiColombo radio-science simulations. We give new constraints for the classic General Relativity tests in terms of violation of the PPN parameters $\beta$ and $\gamma$ and the time variation of the gravitational constant G. We also present new limits for the mass of the graviton and finally we obtain new acceptable intervals for the dilaton parameters $\alpha_{0}$, $\alpha_{T}$ and $\alpha_{G}$. Besides these tests of gravitation, we also study the possibility of detecting the Sun core rotation.