论文标题
圆形光子轨道和黑洞阴影的几何方法
Geometric Approach to Circular Photon Orbits and Black Hole Shadows
论文作者
论文摘要
圆形光子轨道和黑洞阴影在物理和天文学中是显着重要的问题，近年来已经看到了许多突破。通常，使用在黑洞时空运动的测试颗粒的有效潜力获得稳定且不稳定的圆形光子轨道。在这项工作中，开发了一种纯几何方法来计算这些圆形光子轨道和黑洞阴影半径。此外，可以证明我们的几何方法完全等同于基于测试颗粒的有效潜力的常规方法。
Circular photon orbit and black hole shadow are significantly important issues in physics and astronomy, and a number of breakthroughs have been witnessed in recent years. Conventionally, the stable and unstable circular photon orbits are obtained using the effective potential of test particles moving in black hole spacetime. In this work, a pure geometric approach is developed to calculate these circular photon orbits and black hole shadow radius. Furthermore, it can be proved that our geometric approach is completely equivalent to the conventional approach based on effective potentials of test particles.
