# Scalar–tensor–vector gravity theory

@article{Moffat2006ScalartensorvectorGT, title={Scalar–tensor–vector gravity theory}, author={John W. Moffat}, journal={Journal of Cosmology and Astroparticle Physics}, year={2006}, volume={2006}, pages={004 - 004} }

A covariant scalar–tensor–vector gravity theory is developed which allows the gravitational constant G, a vector field coupling ω and the vector field mass μ to vary with space and time. The equations of motion for a test particle lead to a modified gravitational acceleration law that can fit galaxy rotation curves and cluster data without non-baryonic dark matter. The theory is consistent with solar system observational tests. The linear evolutions of the metric, vector field and scalar field…

## 453 Citations

### Gravitational Waves in Scalar–Tensor–Vector Gravity Theory

- Physics
- 2019

In this paper, we study the properties of gravitational waves in the scalar-tensor-vector gravity theory. The polarizations of the gravitational waves are investigated by analyzing the relative…

### Scalar-Tensor-Vector Gravity, Galaxy Rotation Curves, and Quadrupole Gravitational Polarization

- Physics
- 2011

The standard cold dark matter model with a cosmological constant is the best fit to cosmological observations and to galaxy rotation curves. However, unless there is a direct detection of dark…

### Scalar-vector-tensor gravity theories

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2018

We construct the consistent ghost-free covariant scalar-vector-tensor gravity theories with second order equations of motion with derivative interactions. We impose locality, unitarity, Lorentz…

### THE FULLY COVARIANT ENERGY MOMENTUM STRESS TENSOR FOR THE GRAVITATIONAL FIELD AND THE EINSTEIN EQUATION FOR GRAVITY IN CLASSICAL GENERAL RELATIVITY

- Physics
- 2009

We give a fully covariant energy momentum stress tensor for the gravitational field which is easily physically and intuitively motivated, and which leads to a very general derivation of the Einstein…

### Effects of Scalar-Tensor-Vector Gravity on relativistic jets

- Physics
- 2016

Scalar-Tensor-Vector Gravity (STVG) is a theory that does not require dark components to describe astrophysical data. We aim at constraining the free parameters of STVG based on recent observations…

### Modified gravity (MOG), cosmology and black holes

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2021

A covariant modified gravity (MOG) is formulated by adding to general relativity two new degrees of freedom, a scalar field gravitational coupling strength G = 1/χ and a gravitational spin 1 vector…

### The Fully Covariant Energy Momentum Stress Tensor For Gravity and the Einstein Equation in General Relativity

- Physics
- 2009

We give a fully covariant energy momentum stress tensor for the gravitational field which is easily physically motivated, and which leads to a very general derivation of the Einstein equation for…

### On the cosmology of scalar-tensor-vector gravity theory

- Physics
- 2017

We consider the cosmological consequences of a special scalar-tensor-vector theory of gravity, known as MOG (for MOdified Gravity), proposed to address the dark matter problem. This theory introduces…

### Neutron stars in Scalar-Tensor-Vector Gravity

- Physics
- 2016

Scalar-Tensor-Vector Gravity (STVG), also referred as Modified Gravity (MOG), is an alternative theory of the gravitational interaction. Its weak field approximation has been successfully used to…

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