Testing various facets of the equivalence principle using lunar laser ranging
Testing various facets of the equivalence principle using lunar laser ranging
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DOI：
10.1088/0264-9381/29/18/184006
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发表时间：
2012-09
影响因子：
3.5
通讯作者：
Jürgen Müller;F. Hofmann;L. Biskupek
中科院分区：
文献类型：
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作者：
Jürgen Müller;F. Hofmann;L. Biskupek
42年多的月球激光测距为确定地月系统的各种参数和进行与引力物理有关的测试提供了良好的基础。在本文中，我们着重于在太阳引力场中以地球和月球作为试验体的等价性原理的检验，以及银河系暗物质与地球和月球的普通物质耦合而可能违反等价性原理的检验。对三个不同的数据集进行了测试，其中一个数据集的观测数据来自1969年至2011年，另一个数据集的数据仅来自阿帕奇点天文台。在3.6×10−4的诺德特韦特参数η和1.6×10−13的质量比Δ(mg/mI)EM的精度范围内，没有发现与广义相对论的预测有显著的偏差。
More than 42 years of lunar laser ranging provides an excellent basis for the determination of various parameters of the Earth–Moon system and for tests related to gravitational physics. In this paper, we focus on tests of the equivalence principle with the Earth and Moon as test bodies in the gravitational field of the Sun as well as a test of a possible violation of the equivalence principle as a result of the coupling of the galactic dark matter with the ordinary matter of the Earth and the Moon. Tests were carried out for three different data sets with observations from 1969 to 2011, 1986 to 2011, and one set with data only from the Apache Point Observatory. No significant deviation from the predictions of general relativity was found within the reached accuracy of 3.6 × 10−4 for the Nordtvedt parameter η and 1.6 × 10−13 for the mass ratio Δ(mg/mi)EM of gravitational and inertial masses between the Earth and the Moon.