Scalar-tensor-vector-gravity and NGC-1277

TL;DR

This paper compares Newtonian dynamics and Scalar-Tensor-Vector-Gravity (MOG) in explaining the mass distribution of galaxy NGC-1277, which shows no dark matter, finding both theories consistent within the galaxy's visible radius.

Contribution

It demonstrates that MOG can explain NGC-1277's dynamics without dark matter, aligning with Newtonian predictions in this case.

Findings

Both Newtonian and MOG predict similar velocities for NGC-1277.

No observable deviations between the theories within the galaxy's visible radius.

Supports MOG as a viable alternative to dark matter in certain galaxies.

Abstract

NGC1277 is a compact but massive lenticular galaxy that shows no signs of the presence of dark matter. We find that this galaxy's behavior is consistent not only with Newtonian dynamics, but also with the predictions of Scalar--Tensor--Vector--Gravity, also known as MOG (MOdified Gravity). The compact size of the galaxy, in combination with its large mass, ensures that there are no observable deviations between the predictions of Newtonian and MOG orbital velocities within the galaxy's visible radius.