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arXiv 1001.3446gr-qcastro-ph.EPphysics.geo-phphysics.space-ph
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在用LAGEOS卫星进行的Lense-Thirring试验上广义相对论本身可能的先验“印记”

On possible a-priori "imprinting" of General Relativity itself on the performed Lense-Thirring tests with LAGEOS satellites

Lorenzo Iorio

摘要:

本文研究了广义相对论本身可能的先验“印记”效应对最近用绕地球轨道运行的LAGEOS卫星和GRACE专用任务的地球重力位模型测量Lense-Thirring岁差的影响。分析表明,广义相对论,没有明确解决的GRACE为基础的模型,可能会“印记”他们的偶带谐波系数J_L在一个不可忽略的水平,鉴于目前的准确性,在恢复他们。这就转化为基于LAGOS的相对论性检验的偏差,其大小与Lense-Thirring效应本身一样大。进一步的分析应包括广义相对论本身的GRACE数据处理,明确解决它。

英文摘要:

The impact of possible a-priori "imprinting" effects of general relativity itself on recent attempts to measure the Lense-Thirring precessions with the LAGEOS satellites orbiting the Earth and the terrestrial geopotential models by the dedicated mission GRACE is investigated. It is analytically shown that general relativity, not explicitly solved for in the GRACE-based models, may "imprint" their even zonal harmonic coefficients J_L at a non-negligible level, given the present-day accuracy in recovering them. This translates into a bias of the LAGEOS-based relativistic tests as large as the Lense-Thirring effect itself. Further analyses should include general relativity itself in the GRACE data processing by explicitly solving for it.

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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