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Gravitational acceleration of spinning bodies from lunar laser ranging measurements

机译:月球激光测距法测量旋转体的引力加速度

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摘要

The Sun's 1/c(2) order gravitational gradient accelerations of Earth and Moon, dependent on the motions of the latter bodies, act upon the system's internal angular momentum. Not only does this gravitational spin-orbit force (which plays an important part in calculating gravity wave signal templates from astrophysical sources) slightly accelerate the Earth-Moon system as a whole, it more robustly perturbs the internal Earth-Moon dynamics with a 5 cm amplitude, synodically oscillating range contribution which is presently measured to 4 mm precision by more than three decades of accumulated lunar laser ranging data. [References: 8]
机译:太阳和地球和月球的1 / c(2)阶重力梯度加速度取决于后者的运动,作用于系统的内部角动量。这种引力自旋轨道力(在计算来自天体物理源的引力波信号模板中起着重要作用)不仅会稍微加速整个地球-月球系统,而且还会以5 cm的速度更强劲地干扰内部的地球-月球动力学。振幅,同步振荡的距离贡献,目前已通过三十多年的累积月球激光测距数据测量到4毫米的精度。 [参考:8]

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