MOND对最近更新的质量-差异-加速度关系的影响
MOND impact on and of the recently updated mass-discrepancy-acceleration relation
摘要：
McGaugh等人（2016）使用他们广泛的样本更新了众所周知的质量-差异-加速度关系（MDAR），这是主要预测的“MOND定律”之一。这不是一个新发现的关系。相反，它改进了以前的许多研究，提供了更多更好的数据。像它的先例一样，它对盘星系中观察到的动力学异常，特别是MOND范式的分辨率产生了至关重要的影响。他们的结果，确实构成了MOND的胜利。然而，与以前对MDAR的分析不同，McGaugh等人选择混淆他们分析的MOND根源及其与该范式的联系和含义。例如，他们使用的拟合公式，似乎是某种无法解释的灵感的结果，其显着特性遵循MOND的基本原则，并且已经在过去的几次MOND分析中使用过。没有其他可能的起源这样一个功能是已知的。既然这个公式已经被证明可以正确地再现重子分布中观测到的旋转曲线（作为MOND效应），那么它应该正确地描述MDAR，而MDAR只不过是旋转曲线的一个总结，这一点一定是很清楚的。本文纠正了这些疏忽-揭示与MOND的深层联系，抑制McGaugh等人。它也给予应有的信贷以前的作品，并讨论了一些新的，重要的，但鲜为人知的，这MOND关系的方面。（大幅度删节）
英文摘要：
McGaugh et al. (2016) have used their extensive SPARC sample to update the well-known mass-discrepancy-acceleration relation (MDAR), which is one of the major predicted "MOND laws". This is not a newly discovered relation. Rather, it improves on the many previous studies of it, with more and better data. Like its precedents, it bears crucial ramifications for the observed dynamical anomalies in disc galaxies, and, in particular, on their resolution by the MOND paradigm. Their result, indeed, constitute a triumph for MOND. However, unlike previous analyses of the MDAR, McGaugh et al. have chosen to obfuscate the MOND roots of their analysis, and its connection with, and implications for, this paradigm. For example, the fitting formula they use, seemingly as a result of some unexplained inspiration, follows in its salient properties from the basic tenets of MOND, and has already been used in the past in several MOND analyses. No other possible origin for such a function is known. Given that this formula had already been shown to reproduce correctly the observed rotation curves from the baryon distribution (as a MOND effect), it must have been clear, a priory, that it should describe correctly the MDAR, which is but a summary of rotation curves. The present paper corrects these oversights -- bringing to light the deep connections with MOND, suppressed by McGaugh et al. It also gives due credit to previous works, and discusses some new, important, but less known, aspects of this MOND relation. (Substantially abridged.)
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