We study the general relativistic motion of a bright spot in a jet from an accreting black hole. The corresponding lensed images of the moving bright spot are calculated numerically in discrete time intervals along the bright spot trajectory in the Kerr space-time framework. As representative examples, we consider the cases of supermassive black holes SgrA* and M87*. Astrophysical observations of the moving bright spots in the jets from black holes provides the unique possibility for the verification of different gravitation theories in the strong field limit.

中文翻译：

---

模拟来自黑洞 M87* 和 SgrA* 的喷流中亮点的运动

我们研究了吸积黑洞喷流中一个亮点的一般相对论运动。运动亮点的相应透镜图像在克尔时空框架中沿着亮点轨迹以离散时间间隔进行数值计算。作为代表性的例子，我们考虑超大质量黑洞 SgrA* 和 M87* 的情况。对黑洞喷流中运动亮点的天体物理观测为验证强场极限下不同引力理论提供了独特的可能性。