Gravitational Acceleration of Spinning Bodies from Lunar Laser Ranging Measurements

作者: Kenneth Nordtvedt

DOI: 10.1023/A:1024064800831

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摘要: The Sun's 1/c 2 order gravitational gradient accelerations of Earth and Moon, dependent on the motions latter bodies, act upon system's internal angular momentum. Not only does this spin-orbit force (which plays an important part in calculating gravity wave signal templates from astrophysical sources) slightly accelerate Earth-Moon system as a whole, it more robustly perturbs dynamics with 5 cm amplitude, synodically oscillating range contribution which is presently measured to 4 precision by than three decades accumulated lunar laser ranging data.

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