论文标题
关于超流真空理论中银河旋转曲线的渐近行为
On asymptotic behaviour of galactic rotation curves in superfluid vacuum theory
论文作者
论文摘要
物理真空的对数超流体理论预测，重力是一种诱发的现象，具有多尺度的结构。在天文尺度上，随着引力中心的距离增加，引力电势和相应的时空度量由牛顿（Schwarzschild）项主导，然后是对数项，最后是线性和Quadratic（de Sitter）项。相应地，预测旋转曲线在星系的内部区域（主要在外部区域平坦），而在最大的外部区域中是非平板。我们将理论的预测与可用于多个星系的最远的旋转曲线数据点进行了比较：使用两参数拟合，我们执行了一个初步估计，该估计值无视气体和恒星光盘的综合效果，但相对简单，并且对银河型发光物质使用最小的假设。数据强烈指出，在银河郊区的跨界过渡到非平板政权的存在。
The logarithmic superfluid theory of physical vacuum predicts that gravity is an induced phenomenon, which has a multiple-scale structure. At astronomical scales, as the distance from a gravitating center increases, gravitational potential and corresponding spacetime metric are dominated by a Newtonian (Schwarzschild) term, followed by a logarithmic term, finally by linear and quadratic (de Sitter) terms. Correspondingly, rotation curves are predicted to be Keplerian in the inner regions of galaxies, mostly flat in the outer regions, and non-flat in the utmost outer regions. We compare theory's predictions with the furthest rotation curves data points available for a number of galaxies: using a two-parameter fit, we perform a preliminary estimate which disregards the combined effect of gas and stellar disc, but is relatively simple and uses minimal assumptions for galactic luminous matter. The data strongly points out at the existence of a crossover transition from flat to non-flat regimes at galactic outskirts.
