SMuK 2021 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 5: Alternative aspects and formulations

GR 5.1: Vortrag

Mittwoch, 1. September 2021, 14:00–14:15, H6

The Dark Matter Problem and a General Solution — •Albrecht Giese — Taxusweg 15, 22605 Hamburg

The problem of dark matter in the rotation of galaxies has existed for 90 years. Further unexplained phenomena in astronomy are also related to this title, such as gravitational lensing, structure formation, the excessive number of small galaxies and the Bullet Cluster.

The solutions attempted by contemporary physics assume invisible 'dark' particles, or else modified Newton dynamics (MOND). But neither yields a solution for all cases. And even worse: Each theory is in conflict with observations covered by the other solution. This means: no solution exists. - And no evidence of dark matter particles has been found despite intense efforts.

A general solution may be provided by an approach to gravity which was initially pursued by Einstein in 1911, before switching to his space-time structure. In it, Einstein used the variation of the speed of light c in a gravitational field. - If this variation is applied to the internal oscillations in a particle, it causes grav. acceleration. Now, the cause of the variation in c is not plausibly the mass of the source, because light particles, as neutrinos and photons, reduce c equally as all other objects around them and so contribute to the gravitational field.

This alternative view on gravity can be shown to explain all aspects of dark matter. In particular, rotation curves can be calculated quantitatively. It also covers those cases for which both the present solutions provide nothing, such as luminosity-dependent phenomena (Renzo / Tully-Fisher). And it conforms to GR.