论文标题
与银河旋转曲线的内部和外部区分暗物质，修饰的重力和修饰的惯性
Distinguishing Dark Matter, Modified Gravity, and Modified Inertia with the Inner and Outer Parts of Galactic Rotation Curves
论文作者
论文摘要
星系中缺失的重力需要暗物质，或者是重力或惯性的修饰。这些基本重要性的理论可能性可以通过观察到的轨道运动中颗粒的中心置加速度与预期的牛顿加速度与星系中观察到的分布之间的统计关系来区分。在这里，比较了深色暗物质光环，修饰的重力和修饰的惯性的预测，并通过来自Spitzer光度法和准确旋转曲线（SPARC）数据库的星系旋转曲线的统计样本进行比较和测试。在估计平均外场下进行的修饰重力正确预测了旋转曲线内部和外部部分加速度观察到的统计关系。以面值为单位，加速平面上的内部和外部零件之间存在$6.9σ$的差异，这与当前修改的惯性建议不一致。消除存在可能系统问题的星系，例如中央凸起或特殊倾向不会改变这一趋势。冷暗物质光环预测与观察到的关系有系统地偏离关系。旋转曲线的所有方面最自然地通过修饰的重力来解释。
The missing gravity in galaxies requires dark matter, or alternatively a modification of gravity or inertia. These theoretical possibilities of fundamental importance may be distinguished by the statistical relation between the observed centripetal acceleration of particles in orbital motion and the expected Newtonian acceleration from the observed distribution of baryons in galaxies. Here predictions of cold dark matter halos, modified gravity, and modified inertia are compared and tested by a statistical sample of galaxy rotation curves from the Spitzer Photometry and Accurate Rotation Curves (SPARC) database. Modified gravity under an estimated mean external field correctly predicts the observed statistical relation of accelerations from both the inner and outer parts of rotation curves. Taken at face value there is a $6.9σ$ difference between the inner and outer parts on an acceleration plane which would be inconsistent with current proposals of modified inertia. Removing galaxies with possible systematic concerns such as central bulges or special inclinations does not change this trend. Cold dark matter halos predict a systematically deviating relation from the observed one. All aspects of rotation curves are most naturally explained by modified gravity.
