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

Abstract

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.

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

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• The String Dilaton and a Least Coupling Principle
• Progress in Lunar Laser Ranging Tests of Relativistic Gravity
• The Fate of Bound Systems in Phantom and Quintessence Cosmologies
• Solar system effects in Schwarzschild--de Sitter spacetime
• The influence of the cosmological expansion on local systems
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• Tests of Relativistic Gravity in Space: Recent Progress and Future Directions
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• Cosmological expansion and local systems: a Lemaître-Tolman-Bondi model