A modification of the Newtonian dynamics as a possible alternative to the hidden mass hypothesis

TLDR

The paper challenges the necessity of dark matter in galaxies, proposing that observed dynamics may be explained without hidden mass. It introduces a modification of Newtonian dynamics that, at very low accelerations, scales as a²/a₀ ≈ GM/r², where a₀ is a constant acceleration. Applying this modification reproduces galactic observations without invoking dark matter and predicts various galactic characteristics without further assumptions. Published in The Astrophysical Journal (July 1983), DOI 10.1086/161130.

Abstract

view Abstract Citations (2400) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A modification of the Newtonian dynamics as a possible alternative to the hidden mass hypothesis. Milgrom, M. Abstract The author considers the possibility that there is not, in fact, much hidden mass in galaxies and galaxy systems. If a certain modified version of the Newtonian dynamics is used to describe the motion of bodies in a gravitational field (of a galaxy, say), the observational results are reproduced with no need to assume hidden mass in appreciable quantities. Various characteristics of galaxies result with no further assumptions. The basis of the modification is the assumption that in the limit of small acceleration a very low a0, the acceleration of a particle at distance r from a mass M satisfies approximately a2/a0 ≈ MGr-2, where a0 is a constant of the dimensions of an acceleration. Publication: The Astrophysical Journal Pub Date: July 1983 DOI: 10.1086/161130 Bibcode: 1983ApJ...270..365M Keywords: Cosmology; Galactic Structure; Nonrelativistic Mechanics; Stellar Motions; Particle Acceleration; Solar System; Astrophysics full text sources ADS |