先验"印记"的广义相对论本身的一些测试？
A-priori "imprinting" of General Relativity itself on some tests of it?
摘要：
我们研究了广义相对论本身可能的先验"印记"效应对基于卫星/航天器的广义相对论测试的影响。我们处理了一些在太阳引力场中进行或提议的时延测距实验。事实证明，广义相对论在天文单位和太阳引力常数GM_{\odot}上的"印记"，在迄今为止进行的基于航天器的时间延迟测试中没有得到解决，在旨在测量空间曲率PPN参数γ的典型太阳系测距实验中，导致了10 ^-6量级的先验偏差。它太小了一个数量级，不值得卡西尼号进行的实验关注，但它会影响未来计划或提议的测试，旨在达到10 ^-7 - 10 ^-9的精度来确定伽马。
英文摘要：
We investigate the effect of possible a-priori "imprinting" effects of general relativity itself on satellite/spaceraft-based tests of it. We deal with some performed or proposed time-delay ranging experiments in the Sun's gravitational field. It turns out that the "imprint" of general relativity on the Astronomical Unit and the solar gravitational constant GM_{\odot}, not solved for in the so far performed spacecraft-based time-delay tests, induces an a-priori bias of the order of 10^-6 in typical solar system ranging experiments aimed to measuring the space curvature PPN parameter gamma. It is too small by one order of magnitude to be of concern for the performed Cassini experiment, but it would affect future planned or proposed tests aiming to reach a 10^-7-10^-9 accuracy in determining gamma.
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