The Phenomenological Scaling Relations of Disk Galaxies

2019/12/16 by Jeffrey M. La Fortune, La Fortune, Jeffrey M.
Physics and Astronomy · #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Astronomy and Astrophysical Research

paper · pdf · doi:10.48550/arxiv.1912.07335

Abstract

A conservative scaling model based on Newton's law of circular motion and the virial theorem is proposed. Employing dimensionless scaling relations, a physical solution to the Baryonic Tully-Fisher Relation (BTFR) is obtained and the origin of the Radial Acceleration Relation (RAR) is provided. A simple model of the Milky Way's dynamics reveals excellent agreement with recent Gaia DR2 kinematical results.

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