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Open AccessFeature PaperArticle

Modified Newtonian Gravity as an Alternative to the Dark Matter Hypothesis

by 1,2
1
Instituto Universitario de Matemática Multidisciplinar, Building 8G, 2o Floor, Camino de Vera 46022, Spain
2
Universitat Politècnica de València, 46022 Valencia, Spain
Galaxies 2017, 5(4), 74; https://doi.org/10.3390/galaxies5040074
Received: 19 September 2017 / Revised: 30 October 2017 / Accepted: 1 November 2017 / Published: 7 November 2017
[-5]The applications of Newtonian dynamics in galactic scales have shown that the inverse square law is incompatible with the amount of visible mass in the form of stars and molecular clouds. This manifests as the rotational curves of galaxies being asymptotically flat instead of decaying with the distance to the center of the galaxy. In the context of Newtonian gravity, the standard explanation requires a huge amount of dark mass in the form of hypothetical particles that still remain undetected. A different theory was provided as a modification of Newtonian dynamics (MOND) at low accelerations . This MOND theory still has many supporters and it can easily explain some features of the rotation curves, such as the Tully–Fisher (TF) phenomenological relation between luminosity and velocity. In this paper, we revisit the third approach of a non-Newtonian force, that has resurfaced from time to time, in order to reconcile it with a finite apparent dark mass and the TF relation. View Full-Text
Keywords: dark matter; galactic rotation curves; modified theories of gravity; Tully–Fisher relation dark matter; galactic rotation curves; modified theories of gravity; Tully–Fisher relation
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Acedo, L. Modified Newtonian Gravity as an Alternative to the Dark Matter Hypothesis. Galaxies 2017, 5, 74.

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