Galaxy rotations from quantised inertia and visible matter only

TL;DR

This paper demonstrates that quantised inertia accurately predicts galaxy rotation curves using only visible matter, without dark matter, and matches observations across various scales and redshifts.

Contribution

It introduces and tests quantised inertia as a parameter-free model for galaxy rotation, challenging dark matter and MoND explanations.

Findings

Quantised inertia predicts galaxy rotation curves with no dark matter.

The model's predictions match the SPARC dataset across diverse galaxy scales.

Galaxy rotation anomalies increase with redshift as predicted by the model.

Abstract

It is shown here that a model for inertial mass, called quantised inertia, or MiHsC (Modified inertia by a Hubble-scale Casimir effect) predicts the rotational acceleration of the 153 good quality galaxies in the SPARC dataset (2016 AJ 152 157), with a large range of scales and mass, from just their visible baryonic matter, the speed of light and the co-moving diameter of the observable universe. No dark matter is needed. The performance of quantised inertia is comparable to that of MoND, yet it needs no adjustable parameter. As a further critical test, quantised inertia uniquely predicts a specific increase in the galaxy rotation anomaly at higher redshifts. This test is now becoming possible and new data shows that galaxy rotational accelerations do increase with redshift in the predicted manner, at least up to Z=2.2.