Linear cosmological perturbations in Scalar-tensor-vector gravity

Understand

We investigate the cosmological perturbations in the context of a Scalar-Tensor-Vector theory of Gravity known as MOG in the literature.

• Recent investigations show that MOG reproduces a viable background cosmological evolution comparable to $\Lambda$CDM.
• However, the matter-dominated era is slightly different.
• In this paper, we study the linear matter perturbations and estimate the relevant modified gravity parameters.