Implications of Graviton-Graviton Interaction to Dark Matter

TL;DR

This paper proposes that graviton-graviton interactions can enhance gravity in large systems, potentially eliminating the need for dark matter by explaining galaxy rotation curves and the Tully-Fisher relation through a natural mechanism.

Contribution

It introduces a novel mechanism where graviton interactions strengthen gravity, providing a new explanation for dark matter phenomena without exotic particles.

Findings

Reproduces galaxy rotation curves without dark matter

Derives the Tully-Fisher relation naturally

Applies to galaxy clusters with consistent results

Abstract

Our present understanding of the universe requires the existence of dark matter and dark energy. We describe here a natural mechanism that could make exotic dark matter and possibly dark energy unnecessary. Graviton-graviton interactions increase the gravitational binding of matter. This increase, for large massive systems such as galaxies, may be large enough to make exotic dark matter superfluous. Within a weak field approximation we compute the effect on the rotation curves of galaxies and find the correct magnitude and distribution without need for arbitrary parameters or additional exotic particles. The Tully-Fisher relation also emerges naturally from this framework. The computations are further applied to galaxy clusters.