The Galactic Halo Rotation by Weyl Incorporated Gravity
Abstract
A modification of the Einstein-Hilbert Lagrangian by introducing a coupling between the Weyl tensor and the stress-energy tensor was proposed to explain flat galactic rotation curves without the exotic (non-baryonic) dark matter (DM) [1]. The proposed coupling constant was previously determined by fitting the rotational velocities of the Milky Way and M31 modeled with constant density, yielding the same coupling constant for both [2,3]. In this work, we have modified the formalism for a variable density by modeling the galactic systems with realistic, spherically symmetric and radially varying density profiles for the baryonic matter and this analysis is applied to seven edge-on spiral galaxies of the local cluster [4-10] and the Milky Way.
Keywords
Cite
@article{arxiv.2604.01643,
title = {The Galactic Halo Rotation by Weyl Incorporated Gravity},
author = {Asghar Qadir and Ashmal Shahid and Noraiz Tahir},
journal= {arXiv preprint arXiv:2604.01643},
year = {2026}
}
Comments
accepted