English

A strong falsification of the universal radial acceleration relation in galaxies

Astrophysics of Galaxies 2024-01-17 v1

Abstract

In the past few decades, many studies revealed that there exist some apparent universal relations which can describe the dynamical properties in galaxies. In particular, the radial acceleration relation (RAR) is one of the most popular relations discovered recently which can be regarded as a universal law to connect the dynamical radial acceleration with the baryonic acceleration in galaxies. This has revealed an unexpected close connection between dark matter and baryonic matter in galaxies. In this article, by following the recent robust Galactic rotation curve analyses, we derive the Galactic RAR (GRAR) and show for the first time that it deviates from the alleged universal RAR at more than 5σ5\sigma. This provides a strong evidence to falsify the universal nature of RAR in galaxies claimed in past studies.

Keywords

Cite

@article{arxiv.2401.07431,
  title  = {A strong falsification of the universal radial acceleration relation in galaxies},
  author = {Man Ho Chan},
  journal= {arXiv preprint arXiv:2401.07431},
  year   = {2024}
}

Comments

Accepted in ApJ