Astrophysics

    

Inhomogeneous Distribution of the Universe’s Matter Density as a Physical Basis for MOND’s Acceleration a0

Authors: Antonio Francino, Gabriel Simón

One of the most effective theories for dark matter is Milgrom’s Modified Newtonian Dynamics, where a modified law of gravity based on a fixed acceleration scale a0 is postulated that provides a correct description of the gravitational fields in galaxies. However, the significance of a0 is unknown, and the whole theory is generally viewed as a phenomenological description of the observations. Based on Newton’s gravitational law as applied to a uniform continuous mass we posit a non-homogeneous distribution of mass at cosmological scales that would give rise to a constant acceleration that agrees with MOND’s a0. The implications for MOND as a viable theory of dark matter and for the problem of dark energy are discussed.

Comments: 16 Pages. Slightly corrected and improved version, with some necessary references added. Main argument and conclusions unaltered.

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Submission history

[v1] 2023-07-04 17:23:06
[v2] 2023-07-08 21:31:11
[v3] 2023-07-13 00:33:57
[v4] 2023-08-10 08:11:52

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