Probing Models of Extended Gravity using Gravity Probe B and LARES experiments

TL;DR

This paper evaluates extended gravity models, including scalar-tensor and higher-order curvature theories, by analyzing satellite experiments to constrain their parameters in the weak-field regime.

Contribution

It introduces a method to test extended gravity models using satellite data, providing new constraints on their parameters based on recent experimental results.

Findings

Constraints on parameters of extended gravity models from Gravity Probe B and LARES data

Limits on scalar-tensor and higher-order curvature contributions in weak-field gravity

Validation of certain extended gravity theories within experimental bounds

Abstract

We consider models of Extended Gravity and in particular, generic models containing scalar-tensor and higher-order curvature terms, as well as a model derived from noncommutative spectral geometry. Studying, in the weak-field approximation, the geodesic and Lense-Thirring processions, we impose constraints on the free parameters of such models by using the recent experimental results of the Gravity Probe B and LARES satellites.