Are gravitational constant measurement discrepancies linked to galaxy rotation curves ?

TL;DR

This paper explores a possible link between discrepancies in gravitational constant measurements and galaxy rotation curve anomalies, suggesting a common underlying physics based on MOND theory.

Contribution

It proposes a novel interpretation connecting local gravitational constant discrepancies with galaxy rotation anomalies through MOND, unifying small-scale and large-scale gravitational phenomena.

Findings

Discrepancies in G measurements align with galaxy rotation curve anomalies.

A consistent MOND-based extrapolation links local and cosmic gravitational anomalies.

The analysis suggests a common physics underlying different gravitational phenomena.

Abstract

The discrepancies between recently reported experimental values of the gravitational constant were analysed within an inertia interpretation of MOND theory. According to this scenario the relative gravitational acceleration between a test mass and an array of source masses determines the magnitude of post Newtonian corrections at small magnitudes of acceleration. The analysis was applied to one of the most advanced recent Cavendish-type experiment which revealed an experimental value for the gravitational constant of 180 ppm above the current CODATA value with more than five standard deviations significance. A remarkable agreement between this discrepancy and the acceleration anomalies inherent of galaxy rotation curves was found by a consistent extrapolation within the framework of MOND. This surprising result suggests that the two anomalies on totally different length scales may originate from the same underlying physics.