论文标题
银河系和M31旋转曲线：$λ$ cdm vs.
Milky Way and M31 rotation curves: $Λ$CDM vs. MOND
论文作者
论文摘要
我们分析了银河系和M31星系的现有旋转曲线数据，该数据扩展到非常大且加速度较低。我们发现径向加速度的弱加速度（大距离）段的系统下降趋势。在$λ$ CDM Eagle模拟中也注意到了类似的下降趋势，而与通用MOND预测的偏差需要归因于外部现场效应，或者可能是事后选择的加速函数$μ（x）$。
We analyze the existing rotation-curve data of the Milky Way and M31 galaxies that extends to very large distances and low accelerations. We find a systematic downward trend in the weak acceleration (large distances) segment of the radial acceleration. A similar downward trend has been noticed in the $Λ$CDM EAGLE simulation, while the deviation from the generic MOND prediction would need to be ascribed to an external field effect, or possibly a post facto selected acceleration function $μ(x)$.
