Preprint Brief Report Version 1 This version is not peer-reviewed

About Dark Matter and Gravitation

Version 1 : Received: 8 July 2020 / Approved: 9 July 2020 / Online: 9 July 2020 (17:25:47 CEST)

How to cite: Haraux, A. About Dark Matter and Gravitation. Preprints 2020, 2020070198 (doi: 10.20944/preprints202007.0198.v1). Haraux, A. About Dark Matter and Gravitation. Preprints 2020, 2020070198 (doi: 10.20944/preprints202007.0198.v1).

Abstract

A close inspection of Zwicky's seminal papers on the dynamics of galaxy clusters reveals that the discrepancy discovered between the dynamical mass and the luminous mass of clusters has been widely overestimated in 1933 as a consequence of several factors, among which the excessive value of the Hubble constant $H_0$, then believed to be about seven times higher than today's average estimate. Taking account, in addition, of our present knowledge of classical dark matter inside galaxies, the contradiction can be reduced by a large factor. To explain the rather small remaining discrepancy of the order of 5, instead of appealing to a hypothetic exotic dark matter, the possibility of a inhomogeneous gravity is suggested. This is consistent with the ``cosmic tapestry" found in the eighties by De Lapparent and her co-authors, showing that the cosmos is highly inhomogeneous at large scale. A possible foundation for inhomogeneous gravitation is the universally discredited ancient theory of Fatio de Duillier and Lesage on pushing gravity, possibly revised to avoid the main criticisms which led to its oblivion. This model incidentally opens the window towards a completely non-standard representation of cosmos, and more basically calls to develop fundamental investigation to find the origin of the large scale inhomogeneity in the distribution of luminous matter

Subject Areas

gravitation; dark matter; redshift; big bang

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