Baryonic Tully-Fisher test of Grumiller's modified gravity model

TL;DR

This paper evaluates Grumiller's modified gravity model, which explains galactic rotation curves without dark matter, by testing its predictions against the baryonic Tully-Fisher relation using observational data from sixty galaxies.

Contribution

It provides an empirical test of Grumiller's quantum-inspired gravity model against galaxy rotation data, assessing its viability as an alternative to dark matter.

Findings

Model fits observed galaxy rotation data reasonably well.

Rindler acceleration parameter estimated from data.

Supports modified gravity as a potential explanation for galactic dynamics.

Abstract

We test the Grumiller's quantum motivated modified gravity model, which at large distances modifies the Newtonian potential and describes the galactic rotation curves of disk galaxies in terms of a Rindler acceleration term without the need of any dark matter, against the baryonic Tully-Fisher feature that relates the total baryonic mass of a galaxy with flat rotation velocity of the galaxy. We estimate the Rindler acceleration parameter from observed baryonic mass versus rotation velocity data of a sample of sixty galaxies. Grumiller's model is found to describe the observed data reasonably well.