Williams et al. Reply (to the Comment by Dumin on "Progress in Lunar Laser Ranging Tests of Relativistic Gravity")

Details Williams et al. Reply (to the Comment by Dumin on "Progress in Lunar Laser Ranging Tests of Relativistic Gravity") Williams et al. Reply (to the Comment by Dumin on "Progress in Lunar Laser Ranging Tests of Relativistic Gravity")

2006-12-27

arxiv.org/abs/gr-qc/0612171v1

Phys.Rev.Lett.98:059002,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTex, 1 page reply to arXiv:gr-qc/0610035 which comments on arXiv:gr-qc/0411113

Scientific paper

10.1103/PhysRevLett.98.059002

A decreasing gravitational constant, G, coupled with angular momentum conservation is expected to increrase a planetary semimajor axis, a, as \dot a/a=-\dot G/G. Analysis of lunar laser ranging data strongly limits such temporal variations and constrains a local (~1 AU) scale expansion of the solar system as \dot a/a=-\dot G/G =-(4\pm9)\times10^{-13} yr^{-1}, including that due to cosmological effects.

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