论文标题
爱因斯坦四分之一重力中黑洞的重力镜头
Gravitational Lensing by Black Holes in Einstein Quartic Gravity
论文作者
论文摘要
我们研究了爱因斯坦四分之一重力（EQG）中球形对称黑洞的重力透镜作用。使用持续分数方法获得的近似分析解决方案，我们考虑了EQG的预测，与一般相对论（GR）相比，我们银河系中心的超质量黑洞和其他人的超级质量黑洞对镜头效应的效果进行了预测。我们在数值上计算图像的时间延迟和角度位置，发现它们可以偏离GR的时间与MilliarcSeconds一样多，这表明EQG的观察性测试在不久的将来是可行的。我们讨论将EQG与爱因斯坦立方重力的预测区分开的挑战。
We investigate gravitational lensing effects of spherically symmetric black holes in Einstein Quartic Gravity (EQG). Using an approximate analytic solution obtained by continued fraction methods we consider the predictions of EQG for lensing effects by supermassive black holes at the center of our galaxy and others in comparison with general relativity (GR). We numerically compute both time delays and angular positions of images and find that they can deviate from GR by as much as milliarcseconds, suggesting that observational tests of EQG are feasible in the near future. We discuss the challenges of distinguishing the predictions of EQG from those of Einstein Cubic Gravity.
