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arXiv:1505.01774gr-qc

Recent measurements of the gravitational constant as a function of time

S. Schlamminger, J. H. Gundlach, R. D. Newman

Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.

Abstract

A recent publication (J.D. Anderson et. al., EPL 110, 1002) presented a strong correlation between the measured values of the gravitational constant $G$ and the 5.9-year oscillation of the length of day. Here, we provide a compilation of all published measurements of $G$ taken over the last 35 years. A least squares regression to a sine with a period of 5.9 years still yields a better fit than a straight line. However, our additions and corrections to the G data reported by Anderson {\it et al.} significantly weaken the correlation.

arXiv comments
7 pages, 3 figures, 2 tables; fixed a few typos; accepted for publication in PRD
Journal reference
Phys. Rev. D 91, 121101 (2015)
DOI
doi:10.1103/PhysRevD.91.121101
Subjects
gr-qcGeneral Relativity and Quantum Cosmology physics.class-phClassical Physics

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  1. Earth Might Have Hairy Dark Matter 1 comment

    • There's been a follow-up paper from three scientists whose independent G-measurements reach some of the lowest-claimed uncertainties. http://arxiv.org/abs/1505.01774

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