A new proposal for Galactic dark matter: Effect of f(T) gravity

TL;DR

This paper proposes that f(T) gravity can explain galactic rotation curves without dark matter by modeling spacetime metrics that produce constant tangential velocities and stable orbits.

Contribution

It introduces a novel approach where f(T) gravity accounts for galactic dynamics, eliminating the need for dark matter.

Findings

f(T) gravity explains flat rotation curves

Spacetime metric models produce stable circular orbits

Gravity remains attractive without dark matter

Abstract

It is still a challenging problem to the theoretical physicists to know the exact nature of the galactic dark matter which causes the galactic rotational velocity to be more or less a constant. We have proposed that the dark matter as an effect of f(T) gravity. Assuming the flat rotation curves as input we have shown that f(T) gravity can explain galactic dynamics. Here, we don' have to introduce dark matter. Spacetime metric inspired by f(T) gravity describes the region up to which the tangential velocity of the test particle is constant. This inherent property appears to be enough to produce stable circular orbits as well as attractive gravity.