Tests of Gravity Using Lunar Laser Ranging

IF 26.3 2区 物理与天体物理 Q1 PHYSICS, PARTICLES & FIELDS
Stephen M. Merkowitz
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引用次数: 70

Abstract

Lunar laser ranging (LLR) has been a workhorse for testing general relativity over the past four decades. The three retroreflector arrays put on the Moon by the Apollo astronauts and the French built arrays on the Soviet Lunokhod rovers continue to be useful targets, and have provided the most stringent tests of the Strong Equivalence Principle and the time variation of Newton’s gravitational constant. The relatively new ranging system at the Apache Point 3.5 meter telescope now routinely makes millimeter level range measurements. Incredibly, it has taken 40 years for ground station technology to advance to the point where characteristics of the lunar retroreflectors are limiting the precision of the range measurements. In this article, we review the gravitational science and technology of lunar laser ranging and discuss prospects for the future.

Abstract Image

用月球激光测距测试重力
在过去的四十年里,月球激光测距(LLR)一直是检验广义相对论的主力。阿波罗宇航员在月球上安装的三个后向反射器阵列和法国在苏联月目车上建造的阵列仍然是有用的目标,并为强等效原理和牛顿引力常数的时间变化提供了最严格的测试。在阿帕奇点3.5米望远镜上相对较新的测距系统现在经常进行毫米级的距离测量。令人难以置信的是,地面站技术花了40年的时间才发展到月球后向反射器的特性限制了距离测量的精度。本文对月球激光测距的重力科学技术进行了综述,并对其发展前景进行了展望。
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来源期刊
Living Reviews in Relativity
Living Reviews in Relativity 物理-物理:粒子与场物理
CiteScore
69.90
自引率
0.70%
发文量
0
审稿时长
20 weeks
期刊介绍: Living Reviews in Relativity is a peer-reviewed, platinum open-access journal that publishes reviews of research across all areas of relativity. Directed towards the scientific community at or above the graduate-student level, articles are solicited from leading authorities and provide critical assessments of current research. They offer annotated insights into key literature and describe available resources, maintaining an up-to-date suite of high-quality reviews, thus embodying the "living" aspect of the journal's title. Serving as a valuable tool for the scientific community, Living Reviews in Relativity is often the first stop for researchers seeking information on current work in relativity. Written by experts, the reviews cite, explain, and assess the most relevant resources in a given field, evaluating existing work and suggesting areas for further research. Attracting readers from the entire relativity community, the journal is useful for graduate students conducting literature surveys, researchers seeking the latest results in unfamiliar fields, and lecturers in need of information and visual materials for presentations at all levels.
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