Finslerian MOND versus the Strong Gravitational Lensing of the Early-type Galaxies

TL;DR

This paper evaluates Finslerian MOND as an alternative to dark matter in explaining strong gravitational lensing of early-type galaxies, finding no strong evidence for dark matter in the analyzed cases.

Contribution

It tests the applicability of Finslerian MOND to early-type galaxy lensing, extending previous work on Bullet Clusters and challenging dark matter assumptions.

Findings

Finslerian MOND can describe lensing without dark matter.

No strong evidence for dark matter in the analyzed lenses.

Supports Finslerian MOND as a viable alternative to dark matter.

Abstract

The gravitational lensing of Bullet Clusters and early-type galaxies pose serious challenges on the validity of MOND. Recently, Finslerian MOND, a generalization of MOND in the framework of Finsler gravity, has been proposed to explain the mass discrepancy problem of Bullet Cluster 1E 0657\ 558. In this paper, we check the validity of the Finslerian MOND in describing the strong gravitational lensing of early-type galaxies. The investigation on ten strong lenses of the CASTLES samples shows that there is no strong evidence for the existence of dark matter.