Light propagation in the gravitational field of N arbitrarily moving bodies in the 1.5PN approximation for high-precision astrometry
Light propagation in the gravitational field of N arbitrarily moving bodies in the 1.5PN approximation for high-precision astrometry
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DOI：
10.1103/physrevd.92.063015
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发表时间：
2015-09
影响因子：
5
通讯作者：
S. Zschocke
中科院分区：
文献类型：
--
作者：
S. Zschocke
在第一次后牛顿近似中，确定了N个任意运动的扩展体在引力场中的光轨迹。根据参考系理论，这些大质量天体的引力场用它们的本征多极来表示，从而允许这些天体的任意形状和内部结构。这项研究的结果旨在建立一个一致的广义相对论太阳系光传播理论，以实现亚微角秒级的高精度天体测量。
The light-trajectory in the gravitational field of N extended bodies in arbitrary motion is determined in the first post-Newtonian approximation. According to the theory of reference systems, the gravitational fields of these massive bodies are expressed in terms of their intrinsic multipoles, allowing for arbitrary shape and inner structure of these bodies. The results of this investigation aim towards a consistent general-relativistic theory of light propagation in the Solar system for high-precision astrometry at sub-micro-arcsecond level of accuracy.