Mass of Galactic Lenses in Modified Newtonian Dynamics

TL;DR

This paper evaluates the viability of Modified Newtonian Dynamics (MOND) and TeVeS as alternatives to dark matter by analyzing gravitational lensing data and comparing lens mass estimates with stellar models.

Contribution

It provides an empirical assessment of TeVeS using strong lensing data, testing its consistency with observed lens masses.

Findings

No strong outliers to TeVeS theory found

Mild deviations observed but not conclusive

Supports TeVeS as a plausible alternative to dark matter

Abstract

Using strong lensing data Milgrom's MOdified Newtonian Dynamics (MOND) or its covariant TeVeS (Tensor-Vector-Scalar Theory) is being examined here as an alternative to the conventional $\Lambda$CDM paradigm. We examine 10 double-image gravitational lensing systems, in which the lens masses have been estimated by stellar population synthesis models. While mild deviations exist, we do not find out that strong cases for outliers to the TeVeS theory.