On the common nature of dark matter and dark energy: galaxy groups

TL;DR

This paper proposes that dark matter and dark energy are interconnected through a modified gravity framework involving the cosmological constant, explaining galactic phenomena and linking to fundamental physics concepts.

Contribution

It introduces a novel approach linking dark matter and dark energy via a modified Newtonian gravity influenced by the cosmological constant, supported by galaxy group data.

Findings

Dark matter acts as gravity's signature.

Dark matter and dark energy share a common nature.

Galactic halos are influenced by repulsive b5-term of gravity.

Abstract

It is shown that the cosmological constant links the roots both of General Relativity and Newtonian gravity via the general function satisfying Newton's theorem according to which the gravitating sphere acts as a point mass situated in its center. The quantitative evidence for this link is given via the correspondence of the current value of the cosmological constant with the value of the cosmological term in the modified Newtonian gravity to explain the dark matter in the galaxies. This approach reveals: (a) the nature of dark matter as gravity's signature, (b) the common nature of dark matter and of cosmological constant (dark energy), (c) that the dark matter as a consequence of repulsive gravity increasing with the distance ensures the observed higher mass-to-luminosity M/L ratio while moving from the scales of galaxies to galaxy clusters. The galactic halos via non-force-free interaction due to the repulsive \Lambda-term of gravity determine the features of galactic disks as is supported by observations. The data of galaxy groups of the Hercules-Bootes region are also shown to support the \Lambda-gravity nature of the dark matter i.e. the value of the cosmological constant is derived not from cosmological data. Among the consequences of such modified General Relativity is the natural link to AdS/CFT correspondence.