# Gravitomagnetism in Modified theory of Gravity

## TL;DR

This paper investigates gravitomagnetism within Moffat's Modified theory of Gravity, comparing its predictions to General Relativity and experimental data, and constrains the theory's parameters based on observational consistency.

## Contribution

It computes the gravitomagnetic field in MOG and establishes bounds on the theory's parameters using existing experimental measurements.

## Key findings

- MOG's gravitomagnetic predictions align with GR within certain parameter bounds
- The parameter || must be less than 0.0013 for consistency with observations
- Experimental data from Gravity Probe B, LAGEOS, and lunar ranging support the constraints

## Abstract

We study the gravitomagnetism in the Scalar-Vector-Tensor theory or Moffat's Modified theory of Gravity(MOG). We compute the gravitomagnetic field that a slow-moving mass distribution produces in its Newtonian regime. We report that the consistency between the MOG gravitomagnetic field and that predicted by the Einstein's gravitional theory and measured by Gravity Probe B, LAGEOS and LAGEOS 2, and with a number of GRACE and Laser Lunar ranging measurements requires $|\alpha| < 0.0013$. We provide a discussion.