Light propagation in 2PN approximation in the field of one moving monopole I. Initial value problem
Light propagation in 2PN approximation in the field of one moving monopole I. Initial value problem
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DOI：
10.1088/1361-6382/aa9976
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发表时间：
2018-02
影响因子：
3.5
通讯作者：
S. Zschocke
中科院分区：
文献类型：
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作者：
S. Zschocke
在后牛顿二次近似下，研究了单极结构任意运动物体引力场中的光传输问题。发现光的运动轨迹依赖于物体的加速度。为了得到定义明确的对数函数和无量纲自变量，其中一些加速项是重要的，而所有其他加速项在时间延迟测量的皮秒精度水平上可以忽略不计。确定了可观测值、总光偏转和时间延迟的表达式。
In this investigation the light propagation in the gravitational field of one arbitrarily moving body with monopole structure is considered in the second post-Newtonian approximation. It is found that the light trajectory depends on the acceleration of the body. Some of these acceleration terms are important in order to get well-defined logarithmic functions with dimensionless arguments, while all the other acceleration terms are negligible on the pico-second level of accuracy in time-delay measurements. The expressions of the observables total light deflection and time delay are determined.