Dynamical Regularities in Galaxies

Abstract

Galaxies are observed to obey a strict set of dynamical scaling relations. We review these relations for rotationally supported disk galaxies spanning many decades in mass, surface brightness, and gas content. The behavior of these widely varied systems can be summarized with a handful of empirical laws connected by a common acceleration scale.

arXiv comment8 pages, 6 figures; invited review for IAU Symposium 353: Galactic Dynamics in the Era of Large Surveys

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• Predictions and Outcomes for the Dynamics of Rotating Galaxies
• The Effect of Adiabatic Compression on Dark Matter Halos and the Radial Acceleration Relation
• Incorporating baryon-driven contraction of dark matter halos in rotation curve fits
• Towards the explanation of flatness of galaxies rotation curves
• On the radial acceleration of disk galaxies
• Bounding the Cosmological Constant using Galactic Rotation Curves from the SPARC Dataset
• Renzo's rule revisited: A statistical study of galaxies' baryon - dark matter coupling