Dark Matter, Dark Energy and Rotation Curves

TL;DR

This paper investigates how dark matter and dark energy influence galaxy rotation curves, showing that dark energy causes a dip in the curves at certain distances, affecting large galaxy and cluster models.

Contribution

It introduces the impact of dark energy on galaxy rotation profiles, highlighting a specific dip caused by dark energy effects in large systems.

Findings

Rotation curves dip at specific distances due to dark energy effects.

Dark energy influences density profiles of large galaxies and clusters.

Models incorporating dark energy better explain observed rotation curves.

Abstract

Models for DM are invoked with various density distributions, to account for flat rotation curves of galaxies. The effect of DE on these profiles for large galaxies and clusters are also studied. The rotation curves are shown to dip at a particular distance, when the effect of DE became significant.