Gravitational anti-screening as an alternative to the LCDM model

TL;DR

This paper presents a gravitational anti-screening theory that explains galactic rotation curves, the universe's density, and cosmic acceleration without dark energy, offering an alternative to the LCDM cosmological model.

Contribution

It extends previous work by demonstrating the theory's consistency with a flat universe and cosmic acceleration, challenging the need for dark energy in cosmology.

Findings

Universe density parameter approximately 1.08

Theory accounts for galaxy rotation curves and cluster observations

Explains cosmic acceleration without dark energy

Abstract

Previously, in Penner (2016), a theory of gravitational anti-screening was shown to lead to the Baryonic Tully-Fisher Relationship. In addition, it was shown to agree with the observed rotation curve of the Galaxy, the observed features in the rotational curves of other spiral galaxies, and with observations of the Coma cluster. In this paper, the theory is now shown to be consistent with a geometrically flat universe. Using a model of the distribution of superclusters, the overall density parameter of the universe, as determined by the theory, is equal to 1.08 plus/mimus 0.19. In addition, the energy density which falls out from the theory has a negative pressure associated with it. This, along with a model of the evolution of superclusters, leads to an acceleration of the universal expansion without the requirement of dark energy. The theory of gravitational anti-screening therefore provides an alternative to the LCDM model of cosmology.