论文标题
部分可观测时空混沌系统的无模型预测
Constraining MOdified Gravity with the S2 Star
论文作者
论文摘要
我们已经为S2星使用了公开可用的运动学数据来限制修饰重力的参数空间。整合地球体学并使用Markov链蒙特卡洛算法，我们提供了对理论的参数$α$的尺度的第一个约束，该中心代表了重力常数$ g $相对于其牛顿价值的分数增量。也就是说，$α\ Lessim 0.662 $在99.7％的置信度（其中$α= 0 $都将理论降低为一般相对论）。
We have used publicly available kinematic data for the S2 star to constrain the parameter space of MOdified Gravity. Integrating geodesics and using a Markov Chain Monte Carlo algorithm we have provided with the first constraint on the scales of the Galactic Centre for the parameter $α$ of the theory, which represents the fractional increment of the gravitational constant $G$ with respect to its Newtonian value. Namely, $α\lesssim 0.662$ at 99.7% confidence level (where $α= 0$ reduces the theory to General Relativity).
