标题： 修正动力学——现状回顾 显示英文标题

标题： The Modified Dynamics--A Status Review

摘要： 修正动力学（MOND）被提出作为暗物质的替代理论。它归因于星系系统中的质量差异到标准动力学在小加速度极限下的失效。 在简要描述了MOND的基本原理之后，我讨论了其预测现在如何与数据相比较。 我特别强调旋转曲线分析——这是MOND最明确的支持来源之一，以及富x射线星团的核心，在那里 MOND尚未解释清楚质量差异。 然后我概述了MOND计划，特别是仍需完成的工作。 接下来是对MOND宇宙学和结构形成的一般性评论。 最后，我对MOND可能的起源（作为一种有效理论）提出了一些不成熟的想法；特别是关于它可能是由于真空效应产生的可能性。 显示英文摘要

摘要： The Modified dynamics (MOND) has been propounded as an alternative to Dark matter. It imputes the mass discrepancy in galaxy systems to failure of standard dynamics in the limit of small accelerations. After a brief description of the MOND tenets, I discuss how its predictions now compare with the data. I put special emphasis on rotation-curve analysis--whence comes the most clear-cut support for MOND, and on the cores of rich x-ray clusters, where MOND does not yet explain away the mass discrepancy. I then outline the MOND program, especially work still left to do. This is followed by general comments on cosmology and structure formation in MOND. I conclude with some incomplete thoughts on the possible origin of MOND (as an effective theory); in particular on the possibility that it comes about as a vacuum effect.