Testing the Hypothesis of Modified Dynamics with Low Surface Brightness Galaxies and Other Evidence

Testing the Hypothesis of Modified Dynamics with Low Surface Brightness Galaxies and Other Evidence
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DOI:
10.1086/305629
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发表时间:
1998-01
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
S. McGaugh;E. D. Blok
S. McGaugh;E. D. Blok
中科院分区:
其他
文献类型:
--
作者:
S. McGaugh;E. D. Blok

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低表面亮度星系的旋转曲线提供了一个独特的数据集,用来在大的动态范围内测试不同的引力理论,包括大小、质量、表面密度和加速度。许多显然是失败的,包括任何在特定长度范围内出现质量差异的情况。其中一个假设,修正牛顿动力学(MOND),与数据一致。事实上,它准确地预测了观察到的行为。我们在任何尺度上都找不到明显与MOND相矛盾的证据,也找不到很多支持它的证据。
The rotation curves of low surface brightness galaxies provide a unique data set with which to test alternative theories of gravitation over a large dynamic range in size, mass, surface density, and acceleration. Many clearly fail, including any in which the mass discrepancy appears at a particular length scale. One hypothesis, Modified Newtonian Dynamics (MOND), is consistent with the data. Indeed, it accurately predicts the observed behavior. We find no evidence on any scale that clearly contradicts MOND and much that supports it.