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arXiv 1607.08787gr-qc
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LARES卫星热力与广义相对论检验

LARES Satellite Thermal Forces and a Test of General Relativity

Richard Matzner, Phuc Nguyen, Jason Brooks, Ignazio Ciufolini, Antonio Paolozzi, Erricos C. Pavlis, Rolf Koenig, John Ries, Vahe Gurzadyan, Roger Penrose, Giamp… 展开作者

Richard Matzner, Phuc Nguyen, Jason Brooks, Ignazio Ciufolini, Antonio Paolozzi, Erricos C. Pavlis, Rolf Koenig, John Ries, Vahe Gurzadyan, Roger Penrose, Giampiero Sindoni, Claudio Paris, Harutyun Khachatryan, Sergey Mirzoyan

摘要:

我们总结了一个激光测距卫星的参考系拖曳试验,一个广义相对论的预测,然后集中在热推力的估计,一个重要的扰动影响的测试精度。参照系拖曳研究分析了LARES卫星3.5年的数据和LAGEOS两颗卫星更长时间的数据。使用通过测量地球引力场的Grace任务获得的重力场GGM 05 S,确认了广义相对论的预测,1- $σ$形式误差为0.002,系统误差为0.05。与广义相对论预测的$μ$ = 1相比,绕地球拖曳的框架值的结果是$μ$ = 0.994。热力模型假设热量从太阳(可见光)和地球(红外线)流向卫星核心和卫星上的熔融石英反射器,并再辐射到太空。对于大致当前的时期(发射后1460 - 1580天),我们计算出平均沿轨阻力为-0.50 $pm/s^{2}$。

英文摘要:

We summarize a laser-ranged satellite test of frame-dragging, a prediction of General Relativity, and then concentrate on the estimate of thermal thrust, an important perturbation affecting the accuracy of the test. The frame dragging study analysed 3.5 years of data from the LARES satellite and a longer period of time for the two LAGEOS satellites. Using the gravity field GGM05S obtained via the Grace mission, which measures the Earth's gravitational field, the prediction of General Relativity is confirmed with a 1-$σ$ formal error of 0.002, and a systematic error of 0.05. The result for the value of the frame dragging around the Earth is $μ$ = 0.994, compared to $μ$ = 1 predicted by General Relativity. The thermal force model assumes heat flow from the sun (visual) and from Earth (IR) to the satellite core and to the fused silica reflectors on the satellite, and reradiation into space. For a roughly current epoch (days 1460 - 1580 after launch) we calculate an average along-track drag of -0.50 $pm/s^{2}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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