论文标题
宇宙学恒定校正光子球和黑洞阴影半径
Cosmological constant corrections to the photon sphere and black hole shadow radii
论文作者
论文摘要
我们回顾了确定光子球半径和黑洞阴影半径的方程式，并计算当深色能量动作具有通常形式时产生的宇宙常数校正，并且当深色缩放量表来自不变的暗能量动作时。对于事件地平线望远镜的黑洞目标，校正非常小。
We review the equations determining the photon sphere radius and the black hole shadow radius, and calculate the cosmological constant corrections arising when the dark energy action has the usual form, and when dark energy arises from a Weyl scaling invariant dark energy action. For black hole targets of the Event Horizon Telescope, the corrections are very small.
