Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

"Gravitationally Lensed Gravitation" (GLG)

Version 1 : Received: 14 February 2021 / Approved: 18 February 2021 / Online: 18 February 2021 (11:18:38 CET)

How to cite: Boenke, A. "Gravitationally Lensed Gravitation" (GLG). Preprints 2021, 2021020413. Boenke, A. "Gravitationally Lensed Gravitation" (GLG). Preprints 2021, 2021020413.


The intention of this paper is to point out a remarkable hitherto unknown effect of General Relativity. Starting from fundamental physical principles and phenomena arising from General Relativity, it is demonstrated by a simple Gedankenexperiment that a gravitational lens enhances not only the light intensity of a background object but also its gravitational field strength by the same factor. Thus, multiple images generated by a gravitational lens are not just optical illusions, they also have a gravitational effect at the location of the observer! The "Gravitationally Lensed Gravitation" (GLG) may help to better understand the rotation curves of galaxies since it leads to an enhancement of the gravitational interactions of the stars. Furthermore, it is revealed that besides a redshift of the light of far distant objects, the cosmic expansion also causes a corresponding weakening of their gravitational effects. The explanations are presented entirely without metric representation and tensor formalism. Instead, the behavior of light is used to indicate the effect of spacetime curvature. The gravitation is described by the field strength which is identical to the free fall acceleration. The new results thus obtained provide a reference for future numerical calculations based on the Einstein field equations.


gravity; general relativity; gravitational lensing; Birkhoff theorem; gravitational lens gedankenexperiment; light gravity analogy; rotation curve; cosmic expansion; redshift; gravitationally lensed gravitation; GLG


Physical Sciences, Particle and Field Physics

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