Recent measurements of the gravitational constant as a function of time
Abstract
A recent publication [J. D. Anderson et. al., Europhys. Lett. 110, 10002 (2015)] 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 compile published measurements of G from the last 35 years. A least-squares regression to a sinusoid with period 5.9 years still yields a better fit than a straight line. However, our additions and corrections to the G data reported by Anderson et al. significantly weaken the correlation.
- Publication:
-
Physical Review D
- Pub Date:
- June 2015
- DOI:
- 10.1103/PhysRevD.91.121101
- arXiv:
- arXiv:1505.01774
- Bibcode:
- 2015PhRvD..91l1101S
- Keywords:
-
- 04.80.-y;
- Experimental studies of gravity;
- General Relativity and Quantum Cosmology;
- Physics - Classical Physics
- E-Print:
- 7 pages, 3 figures, 2 tables