标题： 强引力透镜中的时间延迟与高斯-博内特修正 显示英文标题

标题： The time delay in strong gravitational lensing with Gauss-Bonnet correction

摘要： 两个由高斯-博内引力支配的相对论性像之间的时滞被研究。 我们推导并计算了由于高斯-博内耦合导致的时滞表达式。 结果表明，两个像之间空间越大，时滞越长。 我们还发现，高斯-博内系数与引力源质量的比值在类似$\frac{\alpha}{M}\in[0,2)$的区域发生变化。 时滞在$\frac{\alpha}{M}\longrightarrow 2$处发散。 显示英文摘要

摘要： The time delay between two relativistic images in the strong gravitational lensing governed by Gauss-Bonnet gravity is studied. We derive and calculate the expression of time delay due to the Gauss-Bonnet coupling. It is shown that the time delay for two images with larger space each other is longer. We also find that the ratio of Gauss-Bonnet coefficient and the mass of gravitational source changes in the region like $\frac{\alpha}{M}\in[0,2)$. The time delay is divergent with $\frac{\alpha}{M}\longrightarrow 2$.