论文标题
在细丝上，倾斜的光环和旋转曲线
On Filaments, Prolate Halos and Rotation Curves
论文作者
论文摘要
我们提出了一种简单的几何机制，以使银河旋转曲线变平，这是由于星系中心存在薄弦状物体或通过伸长的深色 - 图形晕孔而引起的围绕平面围绕田间线的局部压缩，并详细介绍了其在自然界中的可能作用。我们从SPARC数据库中拟合了83个旋转曲线，该曲线具有由薄的“电线”在原点上产生的对数电势，然后在选择了2个产生最有趣拟合的星系后，用替代模型分析了两个流行模型的Dark-Matter Halos的替代模型。我们的结论是，在许多情况下，细丝的存在显然可以提高拟合质量，而凸起的暗物质概况的影响较小。如果以面值为单位，这些结果将意味着在许多星系中存在伸长的质量分布，并且可能对冷暗物质（CDM），自我相互作用的暗物质（SIDM）和修改后的牛顿动力学（Mond）之间的争议产生一些间接影响。
We propose a simple geometrical mechanism for the flattening of galactic rotation curves, the local compression of field lines around their planes induced either by the presence of thin string-like objects at the centers of galaxies or by elongated dark-matter halos, and elaborate on its possible role in Nature. We fit 83 rotation curves from the SPARC database with logarithmic potentials produced by a thin "wire" at the origin and then, after selecting 2 galaxies that yield the most interesting fits, analyze them with an alternative model, deformed versions of two popular models of dark-matter halos. Our conclusion is that the presence of a filament clearly improves the fit quality in a number of cases, while bulged dark matter profiles have a lesser effect. If taken at face value, these results would imply the presence of elongated mass distributions away from the galactic plane in a number of galaxies, and may also have some indirect impact on the controversy between cold dark matter (CDM), self-interacting dark matter (SiDM), and modified Newtonian dynamics (MOND).
